47 lines
1.5 KiB
Groff
47 lines
1.5 KiB
Groff
.\" $NetBSD: catan.3,v 1.3 2013/01/29 02:05:09 matt Exp $
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.Dd January 29, 2013
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.Dt CATAN 3
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.Os
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.Sh NAME
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.Nm catan ,
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.Nm catanf ,
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.Nm catanl
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.Nd complex arc tangent functions
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.Sh SYNOPSIS
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.In complex.h
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.Ft double complex
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.Fn catan "double complex z"
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.Ft float complex
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.Fn catanf "float complex z"
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.Ft long double complex
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.Fn catanl "long double complex z"
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.Sh DESCRIPTION
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These functions compute the complex arc tangent of
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.Ar z ,
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with branch cuts outside the interval
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[\- i,\ +i] along the imaginary axis.
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.Sh RETURN VALUES
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These functions return the complex arc tangent value, in the
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range of a strip mathematically unbounded along the imaginary
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axis and in the interval [-pi/2,\ +pi/2] along the
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real axis.
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.Sh ERRORS
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No errors are defined.
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.Sh SEE ALSO
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.Xr ctan 3 ,
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.St -p1003.1-2001
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.Aq Pa complex.h
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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.
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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.
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The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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