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Rockbox mail archiveSubject: Ang: Re: Math in RockboxAng: Re: Math in Rockbox
From: <lear_at_algonet.se>
Date: Thu, 7 Jul 2005 12:21:42 +0200 (MEST) Andreas wrote: >If x is an integer value, use one of the algorithms already given (lookup >table or while loop). If x can be fixed point as well, you could use some >kind of taylor approximation: > >e^x = x^0/0! + x^1/1! + x^2/2! + x^3/3! + ... > >with 10^x = (e^n)^x = e^(n*x) >and n = ln 10 = 2.302585093 > >for an implementation see >http://people.csail.mit.edu/hqm/imode/fplib/FP.java.html Thanks. I found another Java library that I decided to port from. Seems like a popular past-time, writing fixed-point Java math libraries, for use in e.g. mobile phones... :) Magnus _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2005-07-07 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |