Calculation of pi on many machines

[berndpr]

Dear Benoit!

Quote: And if you have an HP-71B, Valentin has a 6 line program (!) at:

This spigot program for pi is not the best and fastet algorithm and needs a lot of storage.
But it's very short.

I have used the same references to make a similar program and it's nearly identical to Valentin's.

But I got another program from a japanese person (Hiro510) which is using different version of pi/4 approximations (like Leibniz, Machin, Klingenstirna, Gauss, Störmer, Takano Kikuo and 2 unknown).
Some are very fast like Kikuo's and some are extremly slow like Leibniz's.

But if you are interested, the calculation of e (Euler constant) with a similar spigot program is much more faster and need much less storage.

Bye
Berndpr