Approximate pi to 24 digits via keyboard
02-01-2015, 08:08 PM
Post: #18
 EdS2 Member Posts: 158 Joined: Apr 2014
RE: Approximate pi to 24 digits via keyboard
(01-31-2015 07:06 AM)Dieter Wrote:  It works on calculators with a sufficient number of internal digits of pi.
To be pedantic, it works on calculators with sufficiently accurate trig calculations - although probably all calculators do range reduction, and use some approximation to pi in doing so, in fact it's possible to calculate sin(x) without doing range reduction: in which case you need no information about the value of pi. Here are the first few partial sums for sin(3.1415):
Code:
3.1415 -2.0257555664 0.524032441414 -0.0751083819636 0.00701570299194 -0.000352337205218 0.000113786850196 9.18811898433e-05 9.26759966426e-05 9.26530610696e-05
 « Next Oldest | Next Newest »

 Messages In This Thread Approximate pi to 24 digits via keyboard - Rick314 - 01-30-2015, 06:35 PM RE: Approximate pi to 24 digits via keyboard - PANAMATIK - 01-30-2015, 07:22 PM RE: Approximate pi to 24 digits via keyboard - Rick314 - 01-30-2015, 07:53 PM RE: Approximate pi to 24 digits via keyboard - Gilles - 01-30-2015, 08:38 PM RE: Approximate pi to 24 digits via keyboard - Dieter - 01-31-2015, 07:11 AM RE: Approximate pi to 24 digits via keyboard - Gilles - 01-31-2015, 11:25 AM RE: Approximate pi to 24 digits via keyboard - Dieter - 01-31-2015, 06:17 PM RE: Approximate pi to 24 digits via keyboard - Gerson W. Barbosa - 02-02-2015, 02:57 AM RE: Approximate pi to 24 digits via keyboard - Dieter - 02-02-2015, 06:56 AM RE: Approximate pi to 24 digits via keyboard - Dieter - 01-31-2015, 07:06 AM RE: Approximate pi to 24 digits via keyboard - Rick314 - 02-01-2015, 12:21 AM RE: Approximate pi to 24 digits via keyboard - J-F Garnier - 02-01-2015, 08:41 AM RE: Approximate pi to 24 digits via keyboard - Rick314 - 02-01-2015, 05:44 PM RE: Approximate pi to 24 digits via keyboard - Dieter - 02-01-2015, 02:12 PM RE: Approximate pi to 24 digits via keyboard - EdS2 - 02-01-2015 08:08 PM RE: Approximate pi to 24 digits via keyboard - Thomas Klemm - 02-01-2015, 11:07 AM RE: Approximate pi to 24 digits via keyboard - J-F Garnier - 02-01-2015, 11:34 AM RE: Approximate pi to 24 digits via keyboard - Han - 02-02-2015, 11:01 PM RE: Approximate pi to 24 digits via keyboard - Mark Hardman - 02-03-2015, 12:01 AM RE: Approximate pi to 24 digits via keyboard - rprosperi - 02-03-2015, 12:33 AM RE: Approximate pi to 24 digits via keyboard - Thomas Klemm - 02-01-2015, 04:27 PM RE: Approximate pi to 24 digits via keyboard - Dieter - 02-01-2015, 05:34 PM RE: Approximate pi to 24 digits via keyboard - Thomas Klemm - 02-01-2015, 07:24 PM RE: Approximate pi to 24 digits via keyboard - Rick314 - 02-01-2015, 09:17 PM RE: Approximate pi to 24 digits via keyboard - Dieter - 02-01-2015, 10:25 PM RE: Approximate pi to 24 digits via keyboard - Gerson W. Barbosa - 02-02-2015, 02:43 AM RE: Approximate pi to 24 digits via keyboard - Rick314 - 02-02-2015, 06:46 PM RE: Approximate pi to 24 digits via keyboard - Dieter - 02-05-2015, 02:32 PM RE: Approximate pi to 24 digits via keyboard - Gerson W. Barbosa - 02-05-2015, 10:59 PM RE: Approximate pi to 24 digits via keyboard - Claudio L. - 02-06-2015, 03:03 PM RE: Approximate pi to 24 digits via keyboard - Marcus von Cube - 02-06-2015, 07:16 PM RE: Approximate pi to 24 digits via keyboard - PANAMATIK - 02-06-2015, 04:10 PM RE: Approximate pi to 24 digits via keyboard - Dieter - 02-06-2015, 06:34 PM RE: Approximate pi to 24 digits via keyboard - Werner - 02-06-2015, 11:16 AM RE: Approximate pi to 24 digits via keyboard - Werner - 02-07-2015, 06:25 AM RE: Approximate pi to 24 digits via keyboard - Marcus von Cube - 02-07-2015, 11:15 PM RE: Approximate pi to 24 digits via keyboard - Dieter - 02-08-2015, 05:00 PM

User(s) browsing this thread: 1 Guest(s)