alexthunder (
alexthunder
) wrote
2010
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09
-
13
03:54 pm
Чтобы умножить двузначное число само на себя
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netut-tobylo.livejournal.com
2010-09-13 05:40 am (UTC)
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не , не проходит
попробуй 74 ;)
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netut-tobylo.livejournal.com
2010-09-13 05:42 am (UTC)
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(10a+b)^2 = 100a^2 + 20ab + b^2 ;)
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alexthunder.livejournal.com
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2010-09-13 05:44 (UTC)
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http://users.livejournal.com/_ghash_/
2010-09-13 02:00 pm (UTC)
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Это работает на двузначных числах, кратных пяти.
05*05 = (0*1)*100+25 = 25
15*15 = (1*2)*100+25 = 225
25*25 = (2*3)*100+25 = 625
35*35 = (3*4)*100+25 = 1225
...ну и так далее.
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alexthunder.livejournal.com
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2010-09-13 19:50 (UTC)
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netut-tobylo.livejournal.com
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2010-09-13 23:35 (UTC)
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http://users.livejournal.com/_ghash_/
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2010-09-14 14:30 (UTC)
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no subject
не , не проходит
попробуй 74 ;)
no subject
(10a+b)^2 = 100a^2 + 20ab + b^2 ;)
(no subject)
no subject
05*05 = (0*1)*100+25 = 25
15*15 = (1*2)*100+25 = 225
25*25 = (2*3)*100+25 = 625
35*35 = (3*4)*100+25 = 1225
...ну и так далее.
(no subject)
(no subject)
(no subject)