Впервые обозначением этого числа греческой буквой п воспользовался британский математик Джонс (1706), а общепринятым оно стало после работ Эйлера. Это обозначение происходит от начальной буквы греческих слов περιφέρεια — окружность, периферия и περίμετρος — периметр.
The Greek letter π, often spelled out pi in text, was adopted for the number from the Greek word for perimeter "περίμετρος", probably first by William Jones in 1706, and popularized by Leonhard Euler some years later.
in english, at least in the US, we usually write pi as a stylized kind of thing (http://upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Pi-symbol.svg/600px-Pi-symbol.svg.png)
in russian, do you just write п as you usually would?
Why? AFAIK in schools students are taught to write not russian п, but greek π, which in turn is looking very much alike small capital handwritten п though.
Yes, we use exactly the same character. It's not stylized but rather the standard lowercase Greek character. But if the text is not scientific we will rather write "пи".
no subject
Date: 2009-01-20 08:52 pm (UTC)no subject
Date: 2009-01-20 08:54 pm (UTC)no subject
Date: 2009-01-20 09:02 pm (UTC):-)
no subject
Date: 2009-01-20 10:31 pm (UTC)no subject
Date: 2009-01-21 06:00 am (UTC)no subject
Date: 2009-01-20 08:56 pm (UTC)no subject
Date: 2009-01-20 09:07 pm (UTC)The Greek letter π, often spelled out pi in text, was adopted for the number from the Greek word for perimeter "περίμετρος", probably first by William Jones in 1706, and popularized by Leonhard Euler some years later.
http://ru.wikipedia.org/wiki/%D0%9F%D0%B8
http://en.wikipedia.org/wiki/Pi
no subject
Date: 2009-01-20 10:33 pm (UTC)no subject
Date: 2009-01-21 12:10 am (UTC)in russian, do you just write п as you usually would?
no subject
Date: 2009-01-21 02:26 am (UTC)no subject
Date: 2009-01-21 06:29 am (UTC)no subject
Date: 2009-01-21 07:12 am (UTC)no subject
Date: 2009-01-21 07:43 am (UTC)no subject
Date: 2009-01-21 09:01 am (UTC)There's a link to the image above. The image's from wikimedia foundation.
no subject
Date: 2009-01-21 09:26 am (UTC)(the picture is taken from the Wikipedia article)
no subject
Date: 2009-01-21 10:14 am (UTC)no subject
Date: 2009-01-21 10:18 am (UTC)no subject
Date: 2009-01-21 06:47 am (UTC)no subject
Date: 2009-01-21 07:12 am (UTC)It's not stylized but rather the standard lowercase Greek character.
But if the text is not scientific we will rather write "пи".
no subject
Date: 2009-01-21 05:52 pm (UTC)