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log
logf

Format
#include <math.h>
double log(double x);
float logf(float x);


Arguments
  • x is the original value
Return Value
The natural logarithm of x

What This Function Does
It calculates the natural logarithm of x by using this formula:
log(x) = 2* ((x-1)/(x+1) +2/3* ((X-1)/(X+1))^3
   + (2/(2k+1) (x-1)/(x+1)^(2k+1)  (k=0,1,2....)
log(2^k *x) = k * log(2) + log(x)
Note
This standard function comes with NuSystem.


Nintendo® Confidential

Warning: all information in this document is confidential and covered by a non-disclosure agreement. You are responsible for keeping this information confidential and protected. Nintendo will vigorously enforce this responsibility.


Copyright © 1998
Nintendo of America Inc. All rights reserved
Nintendo and N64 are registered trademarks of Nintendo
Last updated January 1998