EXP(3) BSD Library Functions Manual EXP(3)

NAME
     eexxpp, eexxpp22, eexxppmm11 - exponential functions

SYNOPSIS
     ##iinncclluuddee <>

     double
     eexxpp(double x);

     long double
     eexxppll(long double x);

     float
     eexxppff(float x);

     double
     eexxpp22(double x);

     long double
     eexxpp22ll(long double x);

     float
     eexxpp22ff(float x);

     double
     eexxppmm11(double x);

     long double
     eexxppmm11ll(long double x);

     float
     eexxppmm11ff(float x);

DESCRIPTION
     The eexxpp() function computes e**x, the base-e exponential of x.

     The eexxpp22() function computes 2**x, the base-2 exponential of x.

     The eexxppmm11() function computes the base-e exponential of x , minus 1 accu-
     rately even for very small values of x.

SSPPEECCIIAALL VVAALLUUEESS
     eexxpp(+-0) and eexxpp22(+-0) return 1.

     eexxpp(-infinity) and eexxpp22(-infinity) return +0.

     eexxpp(+infinity) and eexxpp22(+infinity) return +infinity.

     eexxppmm11(+-0) returns +-0.

     eexxppmm11(-infinity) returns -1.

     eexxppmm11(+infinity) returns +infinity.

     For all these functions, a range error occurs if the magnitude of x is
     too large.

SEE ALSO
     math(3)

STANDARDS     The eexxpp() , eexxpp22() , and eexxppmm11() functions conform to ISO/IEC
     9899:1999(E).

4th Berkeley Distribution      January 30, 2003      4th Berkeley Distribution