mirror of https://github.com/mkerrisk/man-pages
39 lines
871 B
Groff
39 lines
871 B
Groff
.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
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.\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
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.\" Distributed under GPL
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.\" %%%LICENSE_END
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.\"
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.TH CEXP 3 2008-08-11 "" "Linux Programmer's Manual"
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.SH NAME
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cexp, cexpf, cexpl \- complex exponential function
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.SH SYNOPSIS
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.B #include <complex.h>
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.sp
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.BI "double complex cexp(double complex " z ");"
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.br
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.BI "float complex cexpf(float complex " z ");"
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.br
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.BI "long double complex cexpl(long double complex " z ");"
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.sp
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Link with \fI\-lm\fP.
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.SH DESCRIPTION
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The function calculates e (2.71828..., the base of natural logarithms)
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raised to the power of
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.IR z .
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.LP
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One has:
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.nf
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cexp(I * z) = ccos(z) + I * csin(z)
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.fi
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.SH VERSIONS
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These functions first appeared in glibc in version 2.1.
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.SH CONFORMING TO
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C99.
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.SH SEE ALSO
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.BR cabs (3),
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.BR cexp2 (3),
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.BR clog (3),
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.BR cpow (3),
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.BR complex (7)
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