expf4

NAME

expf4 - return e exponentiated by float elements

SYNOPSIS

Procedure call syntax:

#include <simdmath.h>
vector float expf4(vector float x);
Link with -lsimdmath

Inline call syntax:

#include <simdmath.h>
#include <expf4.h>
vector float _expf4(vector float x);
Parameters  
x input vector

DESCRIPTION

The expf4 function returns a vector of the exponential e^x for each element in x.

RETURN VALUE

The function expf4 returns a float vector in which each element is defined as:
  • e raised to the power of the corresponding element of x.
  • On the SPU single-precision element values of the result that are greater than HUGE_VALF are returned as HUGE_VALF and no error is reported.

ENVIRONMENT

SPU and PPU

CONFORMING TO

SIMD Math library specification for the Cell Broadband Engine™ Architecture.

NOTES

Basis

ISO9899 (C99) exp function

SEE ALSO

exp(3), expd2(3), exp2(3), exp2f4(3), exp2d2(3), expm1(3), expm1f4(3), expm1d2(3), frexp(3), frexpf4(3), frexpd2(3), ldexp(3), ldexpf4(3), ldexpd2(3), pow(3), powf4(3), powd2(3), hypot(3), hypotd2(3), hypotf4(3), sqrt(3), sqrtf4(3), sqrtd2(3), cbrt(3), cbrtf4(3), cbrtd2(3), log(3), logf4(3), logd2(3), log10(3), log2f4(3), log2d2(3), log1p(3), log10f4(3), log10d2(3), logb(3), log1pf4(3), log1pd2(3), ilogb(3), logbf4(3), scalbn(3), ilogbf4(3), ilogbd2(3)