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Teachers' Lounge Discussion: Mental calculation in maths

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From: Loyd

To: Teacher2Teacher Public Discussion
Date: 2003050916:13:15
Subject: Re: remembering PI to 10 places

In the past, I programed in FORTRAN, BASIC, PASCAL and C. I often used the following for PI: Write down the first three doubly odd digits as: 11 33 55. Divide 355 by 113 (355/113) and you get 3.14159292 which is pretty close to pi. Good enough for most work. Corrected a digit in second post.

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