ELLINT(3) User Contributed Perl Documentation ELLINT(3)NAMEPDL::GSLSF::ELLINT - PDL interface to GSL Special Functions
DESCRIPTION
This is an interface to the Special Function package present in the GNU
Scientific Library.
SYNOPSISFUNCTIONS
gsl_sf_ellint_Kcomp
Signature: (double k(); double [o]y(); double [o]e())
Legendre form of complete elliptic integrals K(k) = Integral[1/Sqrt[1 -
k^2 Sin[t]^2], {t, 0, Pi/2}].
gsl_sf_ellint_Kcomp does not process bad values. It will set the bad-
value flag of all output piddles if the flag is set for any of the
input piddles.
gsl_sf_ellint_Ecomp
Signature: (double k(); double [o]y(); double [o]e())
Legendre form of complete elliptic integrals E(k) = Integral[ Sqrt[1 -
k^2 Sin[t]^2], {t, 0, Pi/2}]
gsl_sf_ellint_Ecomp does not process bad values. It will set the bad-
value flag of all output piddles if the flag is set for any of the
input piddles.
gsl_sf_ellint_F
Signature: (double phi(); double k(); double [o]y(); double [o]e())
Legendre form of incomplete elliptic integrals F(phi,k) =
Integral[1/Sqrt[1 - k^2 Sin[t]^2], {t, 0, phi}]
gsl_sf_ellint_F does not process bad values. It will set the bad-value
flag of all output piddles if the flag is set for any of the input
piddles.
gsl_sf_ellint_E
Signature: (double phi(); double k(); double [o]y(); double [o]e())
Legendre form of incomplete elliptic integrals E(phi,k) = Integral[
Sqrt[1 - k^2 Sin[t]^2], {t, 0, phi}]
gsl_sf_ellint_E does not process bad values. It will set the bad-value
flag of all output piddles if the flag is set for any of the input
piddles.
gsl_sf_ellint_P
Signature: (double phi(); double k(); double n();
double [o]y(); double [o]e())
Legendre form of incomplete elliptic integrals P(phi,k,n) = Integral[(1
+ n Sin[t]^2)^(-1)/Sqrt[1 - k^2 Sin[t]^2], {t, 0, phi}]
gsl_sf_ellint_P does not process bad values. It will set the bad-value
flag of all output piddles if the flag is set for any of the input
piddles.
gsl_sf_ellint_D
Signature: (double phi(); double k(); double n();
double [o]y(); double [o]e())
Legendre form of incomplete elliptic integrals D(phi,k,n)
gsl_sf_ellint_D does not process bad values. It will set the bad-value
flag of all output piddles if the flag is set for any of the input
piddles.
gsl_sf_ellint_RC
Signature: (double x(); double yy(); double [o]y(); double [o]e())
Carlsons symmetric basis of functions RC(x,y) = 1/2
Integral[(t+x)^(-1/2) (t+y)^(-1)], {t,0,Inf}
gsl_sf_ellint_RC does not process bad values. It will set the bad-
value flag of all output piddles if the flag is set for any of the
input piddles.
gsl_sf_ellint_RD
Signature: (double x(); double yy(); double z(); double [o]y(); double [o]e())
Carlsons symmetric basis of functions RD(x,y,z) = 3/2
Integral[(t+x)^(-1/2) (t+y)^(-1/2) (t+z)^(-3/2), {t,0,Inf}]
gsl_sf_ellint_RD does not process bad values. It will set the bad-
value flag of all output piddles if the flag is set for any of the
input piddles.
gsl_sf_ellint_RF
Signature: (double x(); double yy(); double z(); double [o]y(); double [o]e())
Carlsons symmetric basis of functions RF(x,y,z) = 1/2
Integral[(t+x)^(-1/2) (t+y)^(-1/2) (t+z)^(-1/2), {t,0,Inf}]
gsl_sf_ellint_RF does not process bad values. It will set the bad-
value flag of all output piddles if the flag is set for any of the
input piddles.
gsl_sf_ellint_RJ
Signature: (double x(); double yy(); double z(); double p(); double [o]y(); double [o]e())
Carlsons symmetric basis of functions RJ(x,y,z,p) = 3/2
Integral[(t+x)^(-1/2) (t+y)^(-1/2) (t+z)^(-1/2) (t+p)^(-1), {t,0,Inf}]
gsl_sf_ellint_RJ does not process bad values. It will set the bad-
value flag of all output piddles if the flag is set for any of the
input piddles.
AUTHOR
This file copyright (C) 1999 Christian Pellegrin
<chri@infis.univ.trieste.it>, 2002 Christian Soeller. All rights
reserved. There is no warranty. You are allowed to redistribute this
software / documentation under certain conditions. For details, see the
file COPYING in the PDL distribution. If this file is separated from
the PDL distribution, the copyright notice should be included in the
file.
The GSL SF modules were written by G. Jungman.
perl v5.18.1 2014-01-17 ELLINT(3)
