Name

exp, expf, expl — base-e exponential function

Synopsis

#include <math.h>
double exp( double   x);
float expf( float   x);
long double expl( long double   x);
[Note] Note

Link with −lm.

DESCRIPTION

The exp() function returns the value of e (the base of natural logarithms) raised to the power of x.

CONFORMING TO

SVr4, 4.3BSD, C89, C99, POSIX.1-2001. The float and long double variants are C99 requirements.

SEE ALSO

cbrt(3), cexp(3), exp10(3), exp2(3), sqrt(3)

COLOPHON

This page is part of release 2.79 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


  Copyright 1993 David Metcalfe (davidprism.demon.co.uk)

Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
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Since the Linux kernel and libraries are constantly changing, this
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responsibility for errors or omissions, or for damages resulting from
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Formatted or processed versions of this manual, if unaccompanied by
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References consulted:
    Linux libc source code
    Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
    386BSD man pages
Modified 1993-07-24 by Rik Faith (faithcs.unc.edu)
Modified 1995-08-14 by Arnt Gulbrandsen <agulbratroll.no>
Modified 2002-07-27 by Walter Harms
(walter.harmsinformatik.uni-oldenburg.de)