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.IX Title "TRIG 3pm"
.TH TRIG 3pm "2023-06-17" "perl v5.36.0" "User Contributed Perl Documentation"
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.nh
.SH "NAME"
PDL::GSLSF::TRIG \- PDL interface to GSL Special Functions
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This is an interface to the Special Function package present in the \s-1GNU\s0 Scientific Library.
.SH "FUNCTIONS"
.IX Header "FUNCTIONS"
.SS "gsl_sf_sin"
.IX Subsection "gsl_sf_sin"
.Vb 1
\&  Signature: (double x(); double [o]y(); double [o]e())
.Ve
.PP
Sin(x) with \s-1GSL\s0 semantics.
.PP
gsl_sf_sin does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_cos"
.IX Subsection "gsl_sf_cos"
.Vb 1
\&  Signature: (double x(); double [o]y(); double [o]e())
.Ve
.PP
Cos(x) with \s-1GSL\s0 semantics.
.PP
gsl_sf_cos does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_hypot"
.IX Subsection "gsl_sf_hypot"
.Vb 1
\&  Signature: (double x(); double xx(); double [o]y(); double [o]e())
.Ve
.PP
Hypot(x,xx) with \s-1GSL\s0 semantics.
.PP
gsl_sf_hypot does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_complex_sin"
.IX Subsection "gsl_sf_complex_sin"
.Vb 1
\&  Signature: (double zr(); double zi(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())
.Ve
.PP
Sin(z) for complex z
.PP
gsl_sf_complex_sin does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_complex_cos"
.IX Subsection "gsl_sf_complex_cos"
.Vb 1
\&  Signature: (double zr(); double zi(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())
.Ve
.PP
Cos(z) for complex z
.PP
gsl_sf_complex_cos does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_complex_logsin"
.IX Subsection "gsl_sf_complex_logsin"
.Vb 1
\&  Signature: (double zr(); double zi(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())
.Ve
.PP
Log(Sin(z)) for complex z
.PP
gsl_sf_complex_logsin does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_lnsinh"
.IX Subsection "gsl_sf_lnsinh"
.Vb 1
\&  Signature: (double x(); double [o]y(); double [o]e())
.Ve
.PP
Log(Sinh(x)) with \s-1GSL\s0 semantics.
.PP
gsl_sf_lnsinh does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_lncosh"
.IX Subsection "gsl_sf_lncosh"
.Vb 1
\&  Signature: (double x(); double [o]y(); double [o]e())
.Ve
.PP
Log(Cos(x)) with \s-1GSL\s0 semantics.
.PP
gsl_sf_lncosh does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_polar_to_rect"
.IX Subsection "gsl_sf_polar_to_rect"
.Vb 1
\&  Signature: (double r(); double t(); double [o]x(); double [o]y(); double [o]xe(); double [o]ye())
.Ve
.PP
Convert polar to rectlinear coordinates.
.PP
gsl_sf_polar_to_rect does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_rect_to_polar"
.IX Subsection "gsl_sf_rect_to_polar"
.Vb 1
\&  Signature: (double x(); double y(); double [o]r(); double [o]t(); double [o]re(); double [o]te())
.Ve
.PP
Convert rectlinear to polar coordinates. return argument in range [\-pi, pi].
.PP
gsl_sf_rect_to_polar does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_angle_restrict_symm"
.IX Subsection "gsl_sf_angle_restrict_symm"
.Vb 1
\&  Signature: (double [o]y())
.Ve
.PP
Force an angle to lie in the range (\-pi,pi].
.PP
gsl_sf_angle_restrict_symm does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_angle_restrict_pos"
.IX Subsection "gsl_sf_angle_restrict_pos"
.Vb 1
\&  Signature: (double [o]y())
.Ve
.PP
Force an angle to lie in the range [0,2 pi).
.PP
gsl_sf_angle_restrict_pos does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_sin_err"
.IX Subsection "gsl_sf_sin_err"
.Vb 1
\&  Signature: (double x(); double dx(); double [o]y(); double [o]e())
.Ve
.PP
Sin(x) for quantity with an associated error.
.PP
gsl_sf_sin_err does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SS "gsl_sf_cos_err"
.IX Subsection "gsl_sf_cos_err"
.Vb 1
\&  Signature: (double x(); double dx(); double [o]y(); double [o]e())
.Ve
.PP
Cos(x) for quantity with an associated error.
.PP
gsl_sf_cos_err does not process bad values.
It will set the bad-value flag of all output ndarrays if the flag is set for any of the input ndarrays.
.SH "AUTHOR"
.IX Header "AUTHOR"
This file copyright (C) 1999 Christian Pellegrin <chri@infis.univ.trieste.it>
All rights reserved. There
is no warranty. You are allowed to redistribute this software /
documentation under certain conditions. For details, see the file
\&\s-1COPYING\s0 in the \s-1PDL\s0 distribution. If this file is separated from the
\&\s-1PDL\s0 distribution, the copyright notice should be included in the file.
.PP
The \s-1GSL SF\s0 modules were written by G. Jungman.