c7a43da627
roff source from the Linux documentation project. Modifications before import: -added NetBSD RCS ID -removed Linux PROLOG and declarations with "long double" -ran the "deshallify" script as required by The Open Group Split out complex related things into an own Makefile fragment. Thanks to hubertf for directions.
57 lines
1.6 KiB
Groff
57 lines
1.6 KiB
Groff
.\" $NetBSD: csqrt.3,v 1.1 2008/02/20 09:55:38 drochner Exp $
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "CSQRT" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" csqrt
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.SH NAME
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csqrt, csqrtf \- complex square root functions
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.SH SYNOPSIS
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.LP
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\fB#include <complex.h>
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.br
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.sp
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double complex csqrt(double complex\fP \fIz\fP\fB);
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.br
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float complex csqrtf(float complex\fP \fIz\fP\fB);
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.br
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\fP
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.SH DESCRIPTION
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.LP
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These functions compute the complex square root of \fIz\fP,
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with a branch cut along the negative real axis.
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.SH RETURN VALUE
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.LP
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These functions return the complex square root value, in the
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range of the right half-plane (including the imaginary
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axis).
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.SH ERRORS
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.LP
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No errors are defined.
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.LP
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\fIThe following sections are informative.\fP
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.SH EXAMPLES
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.LP
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None.
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fIcabs\fP(), \fIcpow\fP(), the Base Definitions volume of
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IEEE\ Std\ 1003.1-2001, \fI<complex.h>\fP
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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