mirror of https://github.com/mkerrisk/man-pages
42 lines
1.1 KiB
Groff
42 lines
1.1 KiB
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 CERF 3 2010-09-12 "" "Linux Programmer's Manual"
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.SH NAME
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cerf, cerff, cerfl, cerfc, cerfcf, cerfcl \- complex error 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 cerf(double complex " z );
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.br
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.BI "float complex cerff(float complex " z );
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.br
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.BI "long double complex cerfl(long double complex " z );
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.sp
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.BI "double complex cerfc(double complex " z );
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.br
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.BI "float complex cerfcf(float complex " z );
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.br
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.BI "long double complex cerfcl(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 (unimplemented) function
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.BR cerf ()
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is the complex version of the error function.
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erf(z) = 2/sqrt(pi) * integral from 0 to z of exp(\-t*t) dt.
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The function
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.BR cerfc ()
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is defined as cerfc(z) = 1\-cerf(z).
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.\" must check 1/sqrt(2*pi) ?
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.SH CONFORMING TO
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The function names are reserved for future use in C99.
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.SH AVAILABILITY
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Not yet in glibc, as at version 2.12.
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.\" But reserved in NAMESPACE.
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.SH SEE ALSO
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.BR erf (3),
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.BR complex (7)
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