FERMI_DIRAC(3) User Contributed Perl Documentation FERMI_DIRAC(3)NAME
PDL::GSLSF::FERMI_DIRAC - PDL interface to GSL Special Functions
DESCRIPTION
This is an interface to the Special Function package present in the GNU Scientific Library. Please note that:
Complete Fermi-Dirac Integrals:
F_j(x) := 1/Gamma[j+1] Integral[ t^j /(Exp[t-x] + 1), {t,0,Infinity}]
Incomplete Fermi-Dirac Integrals:
F_j(x,b) := 1/Gamma[j+1] Integral[ t^j /(Exp[t-x] + 1), {t,b,Infinity}]
SYNOPSIS FunctionsFUNCTIONS
gsl_sf_fermi_dirac_int
Signature: (double x(); double [o]y(); double [o]e(); int j)
Complete integral F_j(x) for integer j
gsl_sf_fermi_dirac_mhalf
Signature: (double x(); double [o]y(); double [o]e())
Complete integral F_{-1/2}(x)
gsl_sf_fermi_dirac_half
Signature: (double x(); double [o]y(); double [o]e())
Complete integral F_{1/2}(x)
gsl_sf_fermi_dirac_3half
Signature: (double x(); double [o]y(); double [o]e())
Complete integral F_{3/2}(x)
gsl_sf_fermi_dirac_inc_0
Signature: (double x(); double [o]y(); double [o]e(); double b)
Incomplete integral F_0(x,b) = ln(1 + e^(b-x)) - (b-x)
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 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 v5.8.0 2003-01-29 FERMI_DIRAC(3)
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EXPINT(3) User Contributed Perl Documentation EXPINT(3)NAME
PDL::GSLSF::EXPINT - PDL interface to GSL Special Functions
DESCRIPTION
This is an interface to the Special Function package present in the GNU Scientific Library.
SYNOPSIS FunctionsFUNCTIONS
gsl_sf_expint_E1
Signature: (double x(); double [o]y(); double [o]e())
E_1(x) := Re[ Integrate[ Exp[-xt]/t, {t,1,Infinity}] ]
gsl_sf_expint_E2
Signature: (double x(); double [o]y(); double [o]e())
E_2(x) := Re[ Integrate[ Exp[-xt]/t^2, {t,1,Infity}] ]
gsl_sf_expint_Ei
Signature: (double x(); double [o]y(); double [o]e())
Ei(x) := PV Integrate[ Exp[-t]/t, {t,-x,Infinity}]
gsl_sf_Shi
Signature: (double x(); double [o]y(); double [o]e())
Shi(x) := Integrate[ Sinh[t]/t, {t,0,x}]
gsl_sf_Chi
Signature: (double x(); double [o]y(); double [o]e())
Chi(x) := Re[ M_EULER + log(x) + Integrate[(Cosh[t]-1)/t, {t,0,x}] ]
gsl_sf_expint_3
Signature: (double x(); double [o]y(); double [o]e())
Ei_3(x) := Integral[ Exp[-t^3], {t,0,x}]
gsl_sf_Si
Signature: (double x(); double [o]y(); double [o]e())
Si(x) := Integrate[ Sin[t]/t, {t,0,x}]
gsl_sf_Ci
Signature: (double x(); double [o]y(); double [o]e())
Ci(x) := -Integrate[ Cos[t]/t, {t,x,Infinity}]
gsl_sf_atanint
Signature: (double x(); double [o]y(); double [o]e())
AtanInt(x) := Integral[ Arctan[t]/t, {t,0,x}]
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 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 v5.8.0 2003-01-29 EXPINT(3)
Hi !
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