mirror of https://github.com/mkerrisk/man-pages
31 lines
827 B
Groff
31 lines
827 B
Groff
.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
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.\" Distributed under GPL
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.\"
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.TH CLOG2 3 2002-07-28 "" "complex math routines"
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.SH NAME
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clog2, clog2f, clog2l \- base-2 logarithm of a complex number
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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 clog2(double complex " z );
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.br
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.BI "float complex clog2f(float complex " z );
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.br
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.BI "long double complex clog2l(long double complex " z );
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.sp
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Link with \-lm.
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.SH DESCRIPTION
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The logarithm is defined as log2(cabs(z))+I*carg(z).
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Please note that z close to zero will cause an overflow.
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.SH "CONFORMING TO"
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These 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 2.4.
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.\" But reserved in NAMESPACE.
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.SH "SEE ALSO"
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.BR cabs (3),
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.BR cexp (3),
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.BR clog (3),
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.BR clog10 (3),
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.BR complex (7)
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