Re: n accuracy
- From: Mark Hoemmen <mark.hoemmen@xxxxxxxxx>
- Date: Wed, 30 May 2007 14:28:50 -0700
fireblade wrote:
Yesterday I was lisping some statistics so I needed e, considering I
couldn't find it at hyperspec (too much coffein I guess) so I used
(exp 1) => 2.7182818 but author of the stat book seemed to have
different idea about some digits. So I've done this to calculate
accuracy of e , actually it's power n:
;;;; Exponent of e
;;; e is the base of the natural logarithms
;;; 1 n
;;; calculated as e =(1 + - )
;;; n
;;; or in lisp
I forget whether you're going to have some issues with rounding error or not, when using that formula. You may want to check a proper numerics manual (NOT "Numerical Methods") to be sure.
mfh
.
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- From: fireblade
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