Lightning calculation and other "mathemagic" | Arthur Benjamin

1,773,693 views ・ 2008-01-09

TED


Please double-click on the English subtitles below to play the video.

Prevodilac: Elizabeta Petrovic Lektor: Ivana Korom
00:12
Good morning, ladies and gentlemen.
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Dobro jutro, dame i gospodo.
00:14
My name is Art Benjamin, and I am a "mathemagician."
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Zovem se Artur Bendžamin i ja sam "matemagičar".
00:18
What that means is, I combine my loves of math and magic
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To znači da kombinujem svoju ljubav za matematikom sa magijom
00:21
to do something I call "mathemagics."
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u nešto što zovem "matemagijom".
00:24
But before I get started, I have a quick question for the audience.
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Ali pre nego što počnem, imam kratko pitanje za publiku.
00:27
By any chance, did anyone happen
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Da li je neko slučajno
00:29
to bring with them this morning a calculator?
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poneo ovog jutra sa sobom digitron?
00:33
Seriously, if you have a calculator with you, raise your hand.
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Ozbiljno, ako imate digitron kod sebe, podignite ruku, podignite ruku.
00:36
Raise your hand. Did your hand go up?
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Ja - sam - vi ste digli ruku?
00:39
Now bring it out, bring it out. Anybody else?
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Izvadite ga, izvadite ga. Još neko?
00:41
I see, I see one way in the back.
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Vidim, vidim jednu skroz iza.
00:43
You sir, that's three.
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Vi gospodine, to je 3.
00:45
And anybody on this side here?
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Neko na ovoj strani ovde?
00:48
OK, over there on the aisle.
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Ok, vi tamo pored prolaza. Možete li vas četvoro sa digitronima
00:49
Would the four of you please bring out your calculators,
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da ih donesete i pridružite mi se na pozornici?
00:52
then join me up on stage.
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00:53
Let's give them a nice round of applause.
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I dajmo ovim dobrovoljcima lep aplauz.
00:55
(Applause)
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(Aplauz)
00:58
That's right.
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U redu. Sada, pošto nisam imao priliku
00:59
Now, since I haven't had the chance to work with these calculators,
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da radim s ovim digitronima, moram da se uverim
01:03
I need to make sure that they are all working properly.
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da rade ispravno.
01:06
Would somebody get us started by giving us a two-digit number, please?
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Može li neko da počne dajući nam
dvocifreni broj, molim?
01:11
How about a two-digit number?
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Može jedan dvocifreni broj?
01:13
Audience: 22.
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Publika: 22.
01:14
AB: 22. And another two-digit number, sir?
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Arthur Benjamin: 22. I još jedan dvocifreni broj, gospodine?
01:16
Audience: 47.
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Publika: 47.
01:17
AB: Multiply 22 times 47, make sure you get 1,034,
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Pomnožite 22 sa 47, proverite da li ste dobili 1034,
01:21
or the calculators are not working.
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ili digitroni ne rade. Da li ste svi dobili 1034? 1034?
01:22
Do all of you get 1,034? 1,034?
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01:26
Volunteer: No.
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Žena: Ne.
01:27
AB: 594. Let's give three of them a nice round of applause there.
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594. Dajmo za ovo troje jedan lepi aplauz?
01:31
(Applause)
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(Aplauz)
01:33
Would you like to try a more standard calculator, just in case?
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Želite li možda neki običniji digitron za svaki slučaj?
Ok, super?
01:36
OK, great.
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01:37
What I'm going to try and do then --
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Ono što ću pokušati i uraditi je -
01:39
I notice it took some of you a little bit of time to get your answer.
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Primećujem da je nekima od vas trebalo vremena da dođete do rešenja.
01:42
That's OK.
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To je ok. Daću vam prečicu za množenje
01:43
I'll give you a shortcut for multiplying even faster on the calculator.
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na digitronima koje će biti brže.
01:47
There is something called the square of a number,
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Postoji nešto što se zove kvadrat broja,
01:49
which most of you know is taking a number and multiplying it by itself.
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za šta većina od vas zna da je to množenje broja
sa samim sobom.
01:53
For instance, five squared would be?
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Na primer, 5 na kvadrat je?
01:55
Audience: 25.
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Publika: 25
01:56
AB: 25. The way we can square on most calculators --
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25. Sada, način na koji možemo da kvadriramo brojeve na većini digitrona--
01:58
let me demonstrate with this one --
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pokazaću na ovom --
02:00
is by taking the number, such as five,
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je da upišemo broj, na primer 5,
02:02
hitting "times" and then "equals,"
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pritisnemo "puta" i onda "jednako",
02:05
and on most calculators that will give you the square.
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i većina digitrona će vam dati kvadrat.
02:08
On some of these ancient RPN calculators,
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Na nekim starim RPN digitronima,
02:10
you've got an "x squared" button on it,
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postoji naredba "x na kvadrat",
02:12
will allow you to do the calculation even faster.
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koja vam omogućuje da izračunate ovo još brže.
02:15
What I'm going to try and do now is to square, in my head,
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Ono što ću sada pokušati je da kvadriram, napamet
02:18
four two-digit numbers
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4 dvocifrena broja
02:20
faster than they can do on their calculators,
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brže nego što oni mogu na svojim digitronima, čak i sa ovom bržom metodom.
02:22
even using the shortcut method.
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02:24
What I'll use is the second row this time,
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Sada ću koristiti drugi red i vas četvoro -
02:26
and I'll get four of you
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jedan, dva, tri, četiri -- doviknite mi dvocifreni broj,
02:28
to each yell out a two-digit number,
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02:29
and if you would square the first number,
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a vi kvadrirajte prvi broj,
02:33
and if you would square the second, the third and the fourth,
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a vi drugi, pa treći i četvrti,
a ja ću se utrkivati sa vama ko će brže do rešenja. Ok?
02:36
I will try and race you to the answer. OK?
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02:38
So quickly, a two-digit number please.
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Pa brzo -- molim jedan dvocifreni broj.
02:41
Audience: 37.
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Publika: 37.
02:42
Arthur Benjamin: 37 squared, OK.
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37 na kvadrat, ok.
02:44
Audience: 23.
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Publika: 23.
02:45
AB: 23 squared, OK.
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23 na kvadrat, ok.
02:46
Audience: 59.
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02:47
AB: 59 squared, OK, and finally?
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Publika: 59.
59 na kvadrat, ok i konačno?
02:49
Audience: 93.
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Publika: 93.
02:50
AB: 93 squared.
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02:51
Would you call out your answers, please?
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93 na kvadrat. Hoćete li mi reći vaša rešenja, molim?
02:54
Volunteer: 1369. AB: 1369.
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Žena: 1369. AB: 1369.
02:56
Volunteer: 529. AB: 529.
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Žena: 529.
AB: 529.
02:58
Volunteer: 3481. AB: 3481.
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Muškarac: 3481.
AB: 3481.
03:00
Volunteer: 8649.
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Muškarac: 8649.
03:01
AB: Thank you very much.
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AB: Hvala vam mnogo.
03:02
(Applause)
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(Aplauz)
03:07
Let me try to take this one step further.
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Dopustite mi da pomerim ovo za jedan korak dalje.
03:10
I'm going to try to square some three-digit numbers this time.
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Ovaj put ću pokušati da kvadriram trocifrene brojeve.
03:13
I won't even write these down --
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I neću ih ni zapisati.
03:15
I'll just call them out as they're called out to me.
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Samo ću viknuti rezultate kada čujem brojeve.
03:17
Anyone I point to, call out a three-digit number.
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Oni na koje pokažem, doviknite trocifreni broj.
03:20
Anyone on our panel, verify the answer.
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Neka sa ove strane neko to potvrdi.
03:22
Just give some indication if it's right.
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Samo dajte naznaku ako je tačno.
03:24
A three-digit number, sir, yes?
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Trocifreni broj, gospodine, da?
03:27
Audience: 987.
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Publika: 987.
03:28
AB: 987 squared is 974,169.
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987 na kvadrat je 974169.
03:31
(Laughter)
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(Smeh)
03:33
AB: Yes? Good.
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Da? Dobro.
03:35
Another three-digit --
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Drugi, sledeći trocifreni broj --
03:37
(Applause)
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(Aplauz)
-- još jedan trocifreni broj, gospodine?
03:39
-- another three-digit number, sir?
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03:41
Audience: 457.
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Publika: 457.
03:42
AB: 457 squared is 205,849.
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457 na kvadrat je 205849.
03:45
205,849?
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205849?
03:47
AB: Yes?
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Da?
03:48
OK, another, another three-digit number, sir?
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Ok, sledeći, sledeći trocifreni broj, gospodine?
03:51
Audience: 321.
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03:52
AB: 321 is 103,041.
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Publika: 321.
321 je 103041. 103041.
03:55
103,041.
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Da? Još jedan trocifreni broj molim.
03:57
Yes? One more three-digit number please.
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Publika: Oh, 722.
04:00
Audience: Oh, 722.
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04:01
AB: 722 is 500, that's a harder one.
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722 je 500 -- ooh, ovo je teže.
04:04
Is that 513,284?
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Je li 513284?
04:07
Volunteer: Yes.
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Žena: Da?
04:08
AB: Yes? Oh, one more, one more three-digit number please.
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AB: Da? Oh, još jedan, još jedan trocifreni broj molim.
04:11
Audience: 162.
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Publika: 162.
04:12
162 squared is 26,244.
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162 na kvadrat je 26244.
04:16
Volunteer: Yes.
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Hvala vam mnogo.
04:17
Thank you very much.
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04:18
(Applause)
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(Aplauz)
04:23
(Applause ends)
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04:25
Let me try to take this one step further.
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Dopustite da odem još dalje s ovim.
04:28
(Laughter)
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(Smeh)
04:29
I'm going to try to square a four-digit number this time.
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Pokušaću da kvadriram četvorocifreni broj ovoga puta.
04:33
You can all take your time on this;
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Ne morate da žurite s ovim; ne mogu da budem brži od vas,
04:34
I will not beat you to the answer on this one,
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ali pokušaću da pogodim tačan odgovor.
04:37
but I will try to get the answer right.
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Da uvedemo još malo slučajnosti, sada ćemo uzeti 4. red publike,
04:39
To make this a little bit more random, let's take the fourth row this time,
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recimo jedan, dva, tri, četiri.
04:42
let's say, one, two, three, four.
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04:44
If each of you would call out a single digit between zero and nine,
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Ako svako od vas vikne jednu cifru od nula do devet,
to bi bio četvorocifreni broj koji ću da kvadriram.
04:47
that will be the four-digit number that I'll square.
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Publika: 9.
04:50
Nine.
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9.
04:51
Seven.
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Publika: 7. AB: 7.
04:52
Five.
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Publika: 5. AB: 5.
Publika: 8. AB: 8.
04:54
Eight.
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04:55
9,758, this will take me a little bit of time, so bear with me.
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9758, ovo će malo duže da potraje, tako da budite sa mnom.
04:58
95 million --
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95 218 564?
05:01
(Sighs)
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05:04
218,564?
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05:07
Volunteer: Yes!
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Žena: Da.
05:08
AB: Thank you very much.
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Hvala vam mnogo.
05:10
(Applause)
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(Aplauz)
05:16
(Applause ends)
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05:18
Now, I would attempt to square a five-digit number --
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Sada bih pokušao da kvadriram petocifreni broj --
05:21
and I can --
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i mogu --
05:22
but unfortunately, most calculators cannot.
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ali nažalost mnogi digitroni ne mogu.
05:25
(Laughter)
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(Smeh)
05:27
Eight-digit capacity -- don't you hate that?
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Kapacitet od 8 cifrara -- zar ne mrzite to?
05:30
So, since we've reached the limits of our calculators --
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Pa kako smo došli do granica naših digitrona --
05:33
what's that?
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molim? Da li vaš ide do --
05:35
Does yours go higher?
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Žena: Ne znam.
Da li vaš ide više?
05:38
Volunteer: I don't know.
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05:39
AB: Oh, yours does?
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Oh -- ide?
05:41
Volunteer: I can probably do it. AB: I'll talk to you later.
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Muškarac: Verovatno mogu to da uradim.
Pričaću sa vama kasnije.
05:44
In the meanwhile, let me conclude
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U međuvremenu, završio bih
05:46
the first part of my show by doing something a little trickier.
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prvi deo mog nastupa sa nečim malo težim.
05:49
Let's take the largest number on the board here, 8649.
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Uzmimo najveći broj na ovoj ploči, 8649.
05:52
Would you each enter that on your calculator?
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Hoćete li molim vas da ga ukucate u digitrone?
05:55
And instead of squaring it this time,
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I sada umesto da ga kvadrirate,
05:57
I want you to take that number and multiply it
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hoću da ga pomnožite
05:59
by any three-digit number that you want,
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sa bilo kojim trocifrenim brojem,
06:02
but don't tell me what you're multiplying by --
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ali nemojte da mi kažete s kojim--
06:04
just multiply it by any random three-digit number.
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samo pomnožite sa bilo kojim trocifrenim brojem.
06:07
So you should have as an answer either
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Rezultat je ili
06:09
a six-digit or probably a seven-digit number.
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šestocifreni ili sedmocifreni broj.
06:12
How many digits do you have, six or seven?
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Koliko cifara imate, 6 ili 7?
06:14
Seven, and yours?
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7, a vi? Žena: 7.
06:16
Seven? Seven?
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7? 7?
I možda.
06:20
And, uncertain.
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06:21
Seven.
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Muškarac: Da.
06:22
Is there any possible way that I could know
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7. Postoji li mogućnost da bih mogao da znam
06:24
what seven-digit numbers you have?
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kojih 7 brojeva imate? Recite "Ne".
06:26
Say "No."
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06:27
(Laughter)
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(Smeh)
06:28
Good, then I shall attempt the impossible --
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Dobro. Onda ću da probam nemoguće--
06:31
or at least the improbable.
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ili bar neverovatno.
06:33
What I'd like each of you to do is to call out for me
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Želim da mi svako od vas dovikne
06:35
any six of your seven digits, any six of them,
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bilo kojih 6 od 7 cifara koje imate, bilo kojih 6,
06:38
in any order you'd like.
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u bilo kom redosledu.
06:40
(Laughter)
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(Smeh)
Jednu po jednu cifru, a ja ću pokušati da pogodim koju ste cifru izostavili.
06:42
One digit at a time,
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06:43
I shall try and determine the digit you've left out.
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Pa, počevši sa vašim sedmocifrenim brojem,
06:47
Starting with your seven-digit number,
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molim recite bilo kojih 6.
06:49
call out any six of them please.
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06:50
Volunteer: 1, 9, 7, 0, 4, 2.
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Žena: 1, ok, 197042.
06:56
AB: Did you leave out the number 6?
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Da li ste izostavili broj 6?
06:57
Good, OK, that's one.
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Žena: Da. AB: Dobro, ok, to je jedan.
06:59
You have a seven-digit number, call out any six of them please.
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Vi imate sedmocifreni broj, viknite bilo kojih 6 od 7?
Žena: 44875.
07:02
Volunteer: 4, 4, 8, 7, 5.
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Mislim da sam čuo samo 5 brojeva. Ja - čekajte - 44875 -
07:05
I think I only heard five numbers. I -- wait -- 44875 --
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07:09
did you leave out the number 6?
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da li ste izostavili broj 6?
07:11
Same as she did, OK.
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Žena: Da. AB: Isto kao ona, ok. Vi imate sedmocifreni broj -
07:12
You've got a seven-digit number --
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viknite bilo kojih 6 jasno i glasno.
07:14
call out any six of them loud and clear.
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07:16
Volunteer: 0, 7, 9, 0, 4, 4.
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Muškarac: 079044.
07:20
I think you left out the number 3?
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Mislim da ste izostavili broj 3?
07:22
AB: That's three.
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To je 3. Verovatnoća da sam slučajno pogađao ove 4 cifre
07:24
The odds of me getting all four of these right by random guessing
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bi bila 1:10 000 tj 10 na 4. stepen.
07:27
would be one in 10,000: 10 to the fourth power.
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07:29
OK, any six of them.
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Ok, bilo kojih 6.
07:31
(Laughter)
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07:32
Really scramble them up this time, please.
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Molim da ih stvarno izmešate sada.
07:34
Volunteer: 2, 6, 3, 9, 7, 2.
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Muškarac: 263972.
07:38
Did you leave out the number 7?
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Da li ste izostavili broj 7?
07:39
And let's give all four of these people a nice round of applause.
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I dajmo svima jedan lep aplauz.
Hvala vam mnogo.
07:43
Thank you very much.
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07:44
(Applause)
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07:50
(Applause ends)
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Za sledeću tačku -
07:53
For my next number --
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07:54
(Laughter)
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(Smeh)
07:57
while I mentally recharge my batteries,
200
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dok mentalno napunim baterije,
imam jedno pitanje za publiku.
08:00
I have one more question for the audience.
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08:02
By any chance, does anybody here happen to know
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Da li neko ovde slučajno zna
08:07
the day of the week that they were born on?
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kog dana u nedelji je rođen?
08:10
If you think you know your birth day, raise your hand.
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Ako mislite da znate dan rođenja, podignite ruku.
08:14
Let's see, starting with -- let's start with a gentleman first.
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Da vidimo, počnimo sa - počnimo prvo sa gospodinom,
08:17
What year was it, first of all?
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Ok gospodine, prvo koja je to godina bila? Zato prvo počinjem sa gospodinom.
08:19
That's why I pick a gentleman first.
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Koja godina?
08:21
Audience: 1953.
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1063
Publika: 1953.
08:22
1953, and the month?
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502247
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1953. i koji mesec?
08:24
November what?
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1230
Publika: Novembar. AB: Koji novembar?
Publika: 23.
08:26
23rd -- was that a Monday?
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23. - da li je to bio ponedeljak? Publika: Da.
08:28
Audience: Yes.
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1001
Da, dobro, neko drugi? Ko bi hteo -
08:29
Good. Somebody else?
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08:30
I haven't seen any women's hands up.
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vidite ja ne - nisam još video da žene dižu ruke.
08:32
OK, how about you, what year?
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Ok, to je - možete li vi, koja godina?
08:34
1949, and the month?
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1232
Publika: 1949. AB: 1949. i koji mesec?
08:36
October what?
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516746
1390
Publika: Oktobar. AB: Koji oktobar?
Publika: Peti.
08:38
Fifth -- was that a Wednesday?
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1706
Peti - da li je to bila sreda?
08:39
Yes! I'll go way to the back right now, how about you?
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2524
Da - otići ću malo iza, vi?
08:42
Yell it out, what year?
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Viknite, koja godina? Publika: 1959.
08:43
Audience: 1959.
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1088
08:44
1959, OK -- and the month?
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2764
1959. ok - i mesec?
Publika: Februar.
08:47
Audience: February.
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527555
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08:48
February what?
224
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1407
Koji februar? Publika: Šesti.
08:50
Sixth -- was that a Friday? Audience: Yes.
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2031
Šesti - da li je to bio petak? Publika: Da.
08:52
Good, how about the person behind her?
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2229
Dobro, a osoba iza nje?
08:54
Call out, what year was it?
227
534413
1723
Recite, recite - koja godina?
08:56
Audience: 1947. AB: 1947, and the month?
228
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2666
Publika: 1947. AB: 1947. i mesec?
08:58
Audience: May. AB: May what?
229
538850
1420
Publika: Maj. AB: Koji maj?
09:00
Seventh -- would that be a Wednesday?
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2071
Publika: Sedmi. AB: Sedmi - da li je to bila sreda?
09:02
Audience: Yes. AB: Thank you very much.
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2326
Publika: Da.
Hvala vam mnogo.
09:04
(Applause)
232
544739
5004
(Aplauz)
09:09
Anybody here who'd like to know the day of the week they were born?
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3174
Želi li neko ovde da zna kojeg dana u nedelji je rođen?
09:12
We can do it that way.
234
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1144
Možemo i tako.
09:14
Of course, I could just make up an answer and you wouldn't know,
235
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3010
Naravno, mogu da izmislim odgovor i ne biste znali,
pa sam se pripremio za to.
09:17
so I come prepared for that.
236
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09:18
I brought with me a book of calendars.
237
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2603
Poneo sam sa sobom knjigu kalendara.
09:21
It goes as far back into the past as 1800, because you never know.
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4245
Ide i do 1800. godine, jer nikad ne znate.
09:25
(Laughter)
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1527
(Smeh)
09:27
I didn't mean to look at you, sir -- you were just sitting there.
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3117
Nisam hteo da gledam u vas, gospodine -
samo ste slučajno sedeli tu.
09:30
(Laughter)
241
570675
1074
09:31
Anyway, Chris, you can help me out here, if you wouldn't mind.
242
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2952
Kris, možes li da mi pomogneš, ako ti nije teško.
09:34
This is a book of calendars.
243
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1871
Ovo je knjiga kalendara i pitaću -
09:36
Who wanted to know their birth day?
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576644
1792
ko je hteo da zna svoj dan rođenja? Vi gospodine. Ok.
09:38
What year was it, first of all?
245
578460
1676
Prvo, koja godina?
09:40
Audience: 1966.
246
580160
1031
Publika: 1966.
09:41
66 -- turn to the calendar with 1966.
247
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2690
'66. - okreni kalendar sa 1966. -
09:43
And what month?
248
583929
1524
i koji mesec?
09:45
Audience: April. AB: April what?
249
585477
1635
Publika: April. AB: Koji april?
09:47
Audience: 17th.
250
587136
1021
Publika: 17. AB : 17. - Verujem da je bila nedelja.
09:48
I believe that was a Sunday.
251
588181
2304
09:50
Can you confirm, Chris?
252
590509
1405
Možeš li da potvrdiš, Krise?
Kris: Da. AB: Da, ok. Reći ću ti nešto, Kris:
09:53
Chris Anderson: Yes.
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1050
09:54
AB: I'll tell you what, Chris:
254
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1518
kad već imaš tu knjigu ispred sebe,
09:55
as long as you have that book in front of you,
255
595659
2189
09:57
do me a favor, turn to a year outside of the 1900s,
256
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3264
otvori godine pre 1900-ih
10:01
either into the 1800s or way into the 2000s --
257
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2837
ili u 1800. ili u 2000.
10:04
that'll be a much greater challenge for me.
258
604021
2032
to će biti veći izazov za mene
10:06
AB: What year would you like? CA: 1824.
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2059
Koju godinu, Kris, želiš?
Kris: 1824.
10:08
AB: 1824, OK.
260
608160
3205
1824, ok.
10:11
AB: And what month?
261
611389
1437
I mesec? Kris: Jun.
10:13
CA: June.
262
613001
1063
Koji jun? Kris: 6.
10:14
AB: June what? CA: Sixth.
263
614088
1248
10:15
AB: Was that a Sunday?
264
615360
2160
Šesti - da li je bila nedelja?
10:17
CA: It was. AB: And it was cloudy.
265
617744
1874
Da. AB: I bilo je oblačno.
10:19
(Laughter)
266
619642
1309
10:20
Good, thank you very much.
267
620975
1706
Dobro, hvala vam mnogo.
10:22
(Applause)
268
622705
1874
(Aplauz)
10:27
(Applause ends)
269
627298
1509
10:28
But I'd like to wrap things up now
270
628831
1624
Hteo bih sada da završim
10:30
by alluding to something from earlier in the presentation.
271
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4657
pozivajući se na nešto
ranije u mojoj prezentaciji.
10:35
There was a gentleman up here who had a 10-digit calculator.
272
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3323
Bio je gospodin sa digitronom sa 10 cifara.
10:38
Where is he, would you stand up,
273
638507
2802
Gde je, možete li da ustanete -
10:41
10-digit guy?
274
641333
1615
momak sa 10 cifara?
10:44
OK, stand up for me just for a second,
275
644940
2196
Ok, ustanite na sekund
10:47
so I can see where you are.
276
647160
1604
da vidim gde ste.
10:49
You have a 10-digit calculator, sir, as well?
277
649160
3130
Ok, oh, ok - i vi imate desetocifreni digitron?
10:52
OK, what I'm going to try and do, is to square in my head
278
652314
3530
Ok, pokušaću da kvadriram u svojoj glavi
10:55
a five-digit number requiring a 10-digit calculator.
279
655868
3380
petocifreni broj za šta je potreban digitron od 10 cifara.
10:59
But to make my job more interesting for you, as well as for me,
280
659272
4864
Ali da učinim još interesantijim za vas i za sebe,
11:04
I'm going to do this problem thinking out loud.
281
664160
3872
rešiću ovaj problem
na glas.
11:08
So you can actually, honestly hear
282
668056
2865
Tako da stvarno možete da čujete
11:10
what's going on in my mind while I do a calculation of this size.
283
670945
4718
šta se dešava u mojoj glavi
dok ovo računam.
11:15
Now, I have to apologize to our magician friend Lennart Green.
284
675687
3280
Sada, moram da se izvinim našem mađioničaru i prijatelju Lenartu Grinu.
11:18
I know as a magician we're not supposed to reveal our secrets,
285
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3072
Znam kao mađioničar da ne smemo da otkrivamo naše tajne,
11:22
but I'm not too afraid
286
682087
1262
ali ja se baš i ne plašim da će ljudi početi
11:23
that people are going to start doing my show next week, so --
287
683373
2883
da izvode moju tačku sledeće nedelje, pa -
11:26
I think we're OK.
288
686280
1563
Mislim da smo ok.
11:27
(Laughter)
289
687867
1146
11:29
(Applause)
290
689037
1256
11:30
So, let's see,
291
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2651
Pa, da vidimo, uzmimo -
11:32
let's take a different row of people, starting with you.
292
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2943
neki drugi red ljudi, počevši sa vama.
11:35
I'll get five digits: one, two, three, four.
293
695959
2177
dobiću 5 cifara: 1, 2, 3, 4 -
11:38
Oh, I did this row already.
294
698160
1318
oh, već sam prošao ovaj red. Hajdemo red pre vas,
11:39
Let's do the row before you,
295
699502
1419
11:40
starting with you: one, two, three, four, five.
296
700945
2269
počevši od vas gospodine: 1, 2, 3, 4, 5.
11:43
Call out a single digit --
297
703238
1311
Viknite po jednu cifru - i to će biti petocifreni broj
11:44
that will be the five-digit number that I will try to square, go ahead.
298
704573
3981
koji ću da kvadriram. Krenite.
Publika: 5. AB: 5.
11:49
Five.
299
709396
1008
11:50
Seven.
300
710983
1026
Publika: 7.AB: 7.
Publika: 6. AB: 6.
11:52
Six.
301
712033
1077
Publika: 8. AB: 8.
11:53
Eight.
302
713134
1002
11:54
Three.
303
714636
1038
Publika: 3. AB: 3.
11:56
57,683 --
304
716160
4555
57 683
12:00
squared.
305
720739
1089
12:01
Yuck.
306
721852
1000
na kvadrat. Jao.
12:03
Let me explain to you how I'm going to attempt this problem.
307
723496
4088
Objasniću vam kako
ću da pokušam da rešim ovaj problem.
12:08
I'm going to break the problem down into three parts.
308
728160
2870
Razbiću problem na 3 dela.
12:11
I'll do 57,000 squared,
309
731054
2648
uradiću 57 000 na kvadrat,
12:13
plus 683 squared,
310
733726
3410
plus 683 na kvadrat,
12:17
plus 57,000 times 683 times two.
311
737160
4761
plus 57 000 puta
683 puta 2.
12:22
Add all those numbers together,
312
742643
2094
Saberem sve te brojeve,
12:24
and with any luck, arrive at the answer.
313
744761
2781
i uz malo sreće, dobiću rešenje.
12:28
Now, let me recap.
314
748160
1449
Sada, ponovimo.
12:30
(Laughter)
315
750006
1470
12:31
Thank you.
316
751500
1135
Hvala vam.
12:32
(Laughter)
317
752659
1873
12:34
While I explain something else --
318
754556
1873
Dok objasnim nešto drugo -
12:36
(Laughter)
319
756453
1230
12:37
-- I know, that you can use, right?
320
757707
2111
- znam, to možete da iskoristite, zar ne?
12:39
(Laughter)
321
759842
1005
12:40
While I do these calculations,
322
760871
1747
Dok računam
12:42
you might hear certain words,
323
762642
2479
možda čujete neke reči,
nasuprot brojevima, kako dolaze usled računanja.
12:45
as opposed to numbers, creep into the calculation.
324
765145
2991
12:48
Let me explain what that is.
325
768160
1398
Objasniću.
12:49
This is a phonetic code,
326
769582
2082
To je fonetički kod,
12:51
a mnemonic device that I use,
327
771688
2076
mnemonički način pamćenja koji koristim,
12:53
that allows me to convert numbers into words.
328
773788
2810
koji pretvara brojeve u reči.
12:56
I store them as words, and later on retrieve them as numbers.
329
776622
3142
Pamtim ih kao reči i posle vraćam kao brojeve.
12:59
I know it sounds complicated; it's not.
330
779788
1961
Znam da zvuči komplikovano, nije -
13:01
I don't want you to think you're seeing something out of "Rain Man."
331
781773
3332
Samo ne želim da mislite da gledate nešto iz "Kišnog čoveka".
(Smeh)
13:05
(Laughter)
332
785129
1047
13:06
There's definitely a method to my madness --
333
786200
2056
Postoji metoda za moje ludilo -
13:08
definitely, definitely.
334
788280
1228
definitivno, definitivno. Izvinite.
13:09
Sorry.
335
789532
1001
13:10
(Laughter)
336
790557
3579
(Smeh)
13:14
If you want to talk to me about ADHD afterwards,
337
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2245
Ako hoćete da pričate sa mnom o ADHD-u
13:16
you can talk to me then.
338
796429
1707
možemo kasnije. U redu -
13:18
By the way, one last instruction,
339
798160
2380
usput, poslednja instrukcija,
13:20
for my judges with the calculators --
340
800564
2352
za moje sudije sa digitronima - ok, znate ko ste -
13:22
you know who you are --
341
802940
1142
ima bar 50 posto šanse
13:24
there is at least a 50 percent chance that I will make a mistake here.
342
804106
5030
da ću da napravim grešku ovde.
13:29
If I do, don't tell me what the mistake is;
343
809160
3428
Ako napravim, ne recite koja je greška
13:32
just say, "you're close," or something like that,
344
812612
2332
već "blizu si" ili tako nešto i probaću da nađem rešenje -
13:34
and I'll try and figure out the answer --
345
814968
1976
što bi bilo i samo po sebi zanimljivo.
13:36
which could be pretty entertaining in itself.
346
816968
2168
13:39
If, however, I am right,
347
819160
1976
Ako međutim, pogodim,
13:41
whatever you do, don't keep it to yourself, OK?
348
821160
2976
šta god da radite, ne ćutite, ok?
13:44
(Laughter)
349
824160
1206
(Smeh)
13:45
Make sure everybody knows that I got the answer right,
350
825390
3214
Neka svi znaju da sam pogodio tačan odgovor,
jer to je moj veliki završetak, ok.
13:48
because this is my big finish, OK.
351
828628
1686
13:50
So, without any more stalling,
352
830338
3190
I bez daljeg odlaganja,
13:53
here we go.
353
833552
2951
krećemo.
13:56
I'll start the problem in the middle, with 57 times 683.
354
836527
2690
Počeću sa problemom u sredini, 57 puta 683.
Sada, 57 puta 68 je 3400 plus 476 je 3876,
13:59
57 times 68 is 3,400, plus 476 is 3876,
355
839241
3142
to je 38760 plus 171,
14:02
that's 38,760 plus 171,
356
842407
2270
14:04
38,760 plus 171 is 38,931.
357
844701
2825
38760 plus 171 je 38931.
14:07
38,931; double that to get 77,862.
358
847550
3586
38931; dupliram to je 77862.
14:11
77,862 becomes cookie fission,
359
851160
1976
77862 postaje "cookie fission",
14:13
cookie fission is 77,822.
360
853160
3976
"cookie fission" je 77822.
14:17
That seems right, I'll go on. Cookie fission, OK.
361
857160
2334
To izgleda dobro, idem dalje. "Cookie fission", ok.
14:19
Next, I do 57 squared, which is 3,249, so I can say,
362
859518
4246
Sledeće, 57 na kvadrat je 3249, pa mogu da kažem
14:23
three billion.
363
863788
1730
3 milijarde. Uzmem 249 dodam "cookie", 249,
14:25
Take the 249, add that to cookie, 249,
364
865542
2594
14:28
oops, but I see a carry coming --
365
868160
1976
oops, vidim preliv -
14:30
249 --
366
870160
1976
249 -
14:32
add that to cookie, 250 plus 77,
367
872160
1976
dodam na cookie, 250 plus 77
14:34
is 327 million --
368
874160
3976
je 327 miliona -
14:38
fission, fission, OK, finally, we do 683 squared,
369
878160
2983
"fission", "fission", ok, konačno, 683 na kvadrat,
14:41
that's 700 times 666, plus 17 squared
370
881167
2335
to je 700 puta 666, plus 17 na kvadrat
14:43
is 466,489, rev up if I need it,
371
883526
2610
je 466489, brže ako treba
14:46
rev up, take the 466,
372
886160
2381
brže, uzmem 466,
14:48
add that to fission, to get,
373
888565
3127
dodam na "fission", da dobijem
o Bože -
14:51
oh gee --
374
891716
2008
14:53
328,489.
375
893748
4388
328489.
14:58
Audience: Yeah! AB: Good.
376
898160
1976
Publika: Da!
AB: Dobro.
15:00
Thank you very much.
377
900160
1356
(Aplauz)
15:01
(Applause)
378
901540
1596
Hvala vam mnogo.
15:03
I hope you enjoyed mathemagics.
379
903160
1489
Nadam se da ste uživali u matemagiji. Hvala vam.
15:04
Thank you.
380
904673
1001
15:05
(Applause)
381
905698
2853
(Aplauz)
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