view doc/liboctave/quad.texi @ 30564:796f54d4ddbf stable

update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 00f796120a6d
children 597f3ee61a48
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@c Copyright (C) 1996-2022 The Octave Project Developers
@c
@c This file is part of Octave.
@c
@c Octave is free software: you can redistribute it and/or modify it
@c under the terms of the GNU General Public License as published by
@c the Free Software Foundation, either version 3 of the License, or
@c (at your option) any later version.
@c
@c Octave is distributed in the hope that it will be useful, but
@c WITHOUT ANY WARRANTY; without even the implied warranty of
@c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@c GNU General Public License for more details.
@c
@c You should have received a copy of the GNU General Public License
@c along with Octave; see the file COPYING.  If not, see
@c <https://www.gnu.org/licenses/>.

@node Quadrature, Ordinary Differential Equations, Optimization, Top
@chapter Quadrature
@cindex quadrature
@cindex numerical integration
@cindex integration

@deftypefn  {} {} Quad (integrand_fcn @var{fcn})
@deftypefnx  {} {} Quad (integrand_fcn @var{fcn}, double @var{abs}, double @var{rel})
@end deftypefn

@deftypefn {} {virtual double} integrate (void)
@deftypefnx {} {virtual double} integrate (int &@var{ier})
@deftypefnx {} {virtual double} integrate (int &@var{ier}, int &@var{neval})
@deftypefnx {} {virtual double} integrate (int &@var{ier}, int &@var{neval}, double &@var{abserr}) = 0
@end deftypefn

@deftypefn {} {} Quad_options (void)
@deftypefnx {} {} Quad_options (const Quad_options &@var{opt})
@end deftypefn

@deftypefn {} Quad_options& {operator =} (const Quad_options &@var{opt})
@end deftypefn

@deftypefn {} void init (void)
@end deftypefn

@deftypefn {} void copy (const Quad_options &@var{opt})
@end deftypefn

@deftypefn {} void set_default_options (void)
@end deftypefn

@deftypefn {} void set_absolute_tolerance (double @var{val})
@end deftypefn

@deftypefn {} void set_relative_tolerance (double @var{val})
@end deftypefn

@deftypefn {} double absolute_tolerance (void)
@deftypefnx {} double relative_tolerance (void)
@end deftypefn

@deftypefn  {} {} DefQuad (integrand_fcn @var{fcn})
@deftypefnx  {} {} DefQuad (integrand_fcn @var{fcn}, double @var{ll}, double @var{ul})
@deftypefnx  {} {} DefQuad (integrand_fcn @var{fcn}, double @var{ll}, double @var{ul}, double @var{abs}, double @var{rel})
@deftypefnx  {} {} DefQuad (integrand_fcn @var{fcn}, double @var{ll}, double @var{ul}, const ColumnVector &@var{sing})
@deftypefnx  {} {} DefQuad (integrand_fcn @var{fcn}, const ColumnVector &@var{sing}, double @var{abs}, double @var{rel})
@deftypefnx  {} {} DefQuad (integrand_fcn @var{fcn}, const ColumnVector &@var{sing})
@deftypefnx  {} {} DefQuad (integrand_fcn @var{fcn}, double @var{ll}, double @var{ul}, const ColumnVector &@var{sing}, double @var{abs}, double @var{rel})
@end deftypefn

@deftypefn  {} {} IndefQuad (integrand_fcn @var{fcn})
@deftypefnx  {} {} IndefQuad (integrand_fcn @var{fcn}, double @var{b}, IntegralType @var{t})
@deftypefnx  {} {} IndefQuad (integrand_fcn @var{fcn}, double @var{b}, IntegralType @var{t}, double @var{abs}, double @var{rel})
@deftypefnx  {} {} IndefQuad (integrand_fcn @var{fcn}, double @var{abs}, double @var{rel})
@end deftypefn

@menu
* Collocation Weights::
@end menu

@node Collocation Weights,  , Quadrature, Quadrature
@section Collocation Weights
@cindex orthogonal collocation
@cindex collocation weights

@deftypefn  {} {} CollocWt (void)
@deftypefnx  {} {} CollocWt (int @var{n}, int @var{inc_l}, int @var{inc_r})
@deftypefnx  {} {} CollocWt (int @var{n}, int @var{inc_l}, int @var{inc_r}, double @var{l}, double @var{r})
@deftypefnx  {} {} CollocWt (int @var{n}, double @var{a}, double @var{b}, int @var{inc_l}, int @var{inc_r})
@deftypefnx  {} {} CollocWt (int @var{n}, int @var{inc_l}, int @var{inc_r}, double @var{l}, double @var{r})
@deftypefnx  {} {} CollocWt (const CollocWt&)
@end deftypefn

@deftypefn {} CollocWt& {operator =} (const CollocWt&)
@end deftypefn

@deftypefn {} CollocWt& resize (int @var{ncol})
@end deftypefn

@deftypefn {} CollocWt& add_left (void)
@deftypefnx {} CollocWt& add_right (void)
@end deftypefn

@deftypefn {} CollocWt& delete_left (void)
@deftypefnx {} CollocWt& delete_right (void)
@end deftypefn

@deftypefn {} CollocWt& set_left (double @var{val})
@deftypefnx {} CollocWt& set_right (double @var{val})
@end deftypefn

@deftypefn {} CollocWt& set_alpha (double @var{val})
@deftypefnx {} CollocWt& set_beta (double @var{val})
@end deftypefn

@deftypefn {} int ncol (void) const
@end deftypefn

@deftypefn {} int left_included (void) const
@deftypefnx {} int right_included (void) const
@end deftypefn

@deftypefn {} double left (void) const
@deftypefnx {} double right (void) const
@deftypefnx {} double width (void) const
@end deftypefn

@deftypefn {} double alpha (void) const
@deftypefnx {} double beta (void) const
@end deftypefn

@deftypefn {} ColumnVector roots (void)
@deftypefnx {} ColumnVector quad (void)
@deftypefnx {} ColumnVector quad_weights (void)
@end deftypefn

@deftypefn {} Matrix first (void)
@deftypefnx {} Matrix second (void)
@end deftypefn

@deftypefn {} {ostream&} {operator <<} (ostream &@var{os}, const CollocWt &@var{c})
@end deftypefn