# Formula for π - It's National Pi Day 3/14

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• Updated 1 year ago
It is my favorite day of the year - National Pi Day.

Everybody is getting in on the fun including Google and QuickBase.

Today Is the 30th Anniversary of Pi Day
Here's What to Know About the Mathematical Holiday

To celebrate here is my QuickBase formula for π from the 15th century (Nilakantha):
`3 +4 * (  1 / ( 2 *  3 *  4) -    1 / ( 4 *  5 *  6) +   1 / ( 6 *  7 *  8) -   1 / ( 8 *  9 * 10) +   1 / (10 * 11 * 12) -   1 / (12 * 13 * 14) +   1 / (14 * 15 * 16) -  1 / (16 * 17 * 18) +  1 / (18 * 19 * 20) -  1 / (20 * 21 * 22) +  1 / (22 * 23 * 24) -  1 / (24 * 25 * 26))`
Which evaluates to : 3.1414796890043

Not too shabby and certainly beats memorizing all those digits.

Ⲇanom the ultimate (Dan Diebolt), Champion

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Posted 1 year ago

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QuickBaseCoach App Dev./Training, Champion

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Very elegant formula and incredible that it was done in the 15th century.

Ⲇanom the ultimate (Dan Diebolt), Champion

• 30,074 Points
And it is 100% native!

QuickBaseCoach App Dev./Training, Champion

• 67,358 Points
Nice π in your subject line btw. It is difficult to find that character on my iPad during breakfast.