Inside Macintosh: PowerPC Numerics / Part 2 - The PowerPC Numerics C Implementation

Chapter 10 - Transcendental Functions

Logarithmic Functions

MathLib provides seven logarithmic functions:

$frexp(x,exp)$	Splits x into fraction and exponent fields.
$log(x)$	Base e or natural logarithm.
$log10(x)$	Base 10 logarithm.
$log1p(x)$	Computes $log(1+x)$ .
$log2(x)$	Base 2 logarithm.
$logb(x)$	Returns exponent part of x.
$modf(x,iptr)$	Splits x into an integer and a fraction.