HP-UX Reference (11i v2 04/09) - 3 Library Functions A-M (vol 6)

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exp10(3M) exp10(3M)

NAME

exp10( ), exp10f( ), exp10l( ), exp10w( ), exp10q( ) - base-10 exponential functions

SYNOPSIS

#include <math.h>

Itanium(R)-based System Only

double exp10(double x);

float exp10f(float x);

long double exp10l(long double x);

extended exp10w(extended x);

quad exp10q(quad x);

DESCRIPTION

Itanium-based System Only

exp10() returns 10

exp10f() is a float version of exp10(); it takes a

float argument and returns a float result.

exp10l() is a long double version of exp10(); it takes a long double argument and returns a

long double result.

exp10w() is an extended version of exp10(); it takes an extended argument and returns an

extended result.

exp10q() is equivalent to exp10l() on HP-UX systems.

USAGE

To use these functions compile either with the default

-Ae option or with the -Aa

and

-D_HPUX_SOURCE options.

To use

exp10w() or exp10q(), compile also with the -fpwidetypes option.

To use any of these functions, make sure your program includes

<math.h>, and link in the math library

by specifying -lm on the compiler or linker command line.

For more information, see the HP-UX Floating-Point Guide.

RETURN VALUE

exp10(±0) returns 1.

If x is +INFINITY,

exp10() returns +INFINITY.

If x is −INFINITY,

exp10() returns zero.

If x is NaN,

exp10() returns NaN.

exp10() returns inﬁnity in lieu of a value whose magnitude is too large, and raises the overﬂow and

inexact exceptions.

exp10() raises the underﬂow and inexact exceptions whenever a result is tiny (essentially denormal or

zero) and thereby suffers loss of accuracy, and may raise those exceptions if the result is merely tiny.

exp10() raises the inexact exception whenever a rounded result does not equal the mathematical result.

ERRORS

No errors are deﬁned.