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

Chapter 10 - Transcendental Functions

Exponential Functions

MathLib provides six exponential functions:

$exp(x)$	The base e or natural exponential $ex$ .
$exp2(x)$	The base 2 exponential $2x$ .
$expm1(x)$	The base e exponential minus 1.
$ldexp(x,n)$	Returns $x\times 2n$ (equivalent to scalb).
$pow(x,y)$	Returns $xy$ .
$scalb(x,n)$	Returns $x\times 2n$ .