Mercurial > octave
view libinterp/corefcn/ellipj.cc @ 29958:32c3a5805893
move DEFUN and DEFMETHOD functions inside octave namespace
* mk-opts.pl: Surround emitted function definitions with
OCTAVE_NAMESPACE_BEGIN and OCTAVE_NAMESPACE_END tags.
* mk-builtins.pl: Surround emitted function declarations with
OCTAVE_NAMESPACE_BEGIN and OCTAVE_NAMESPACE_END tags. Emit deprecated
global inline functions.
* __betainc__.cc, __contourc__.cc, __dsearchn__.cc, __eigs__.cc,
__expint__.cc, __ftp__.cc, __gammainc__.cc, __ichol__.cc, __ilu__.cc,
__lin_interpn__.cc, __magick_read__.cc, __pchip_deriv__.cc, __qp__.cc,
amd.cc, balance.cc, besselj.cc, bitfcns.cc, bsxfun.cc, call-stack.cc,
ccolamd.cc, cellfun.cc, chol.cc, colamd.cc, colloc.cc, conv2.cc,
daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc, defaults.cc,
defun.cc, det.cc, dirfns.cc, display.cc, dlmread.cc, dmperm.cc,
dot.cc, eig.cc, ellipj.cc, environment.cc, error.cc, event-manager.cc,
fcn-info.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc,
gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc,
graphics.cc, gsvd.cc, hash.cc, help.cc, hess.cc, hex2num.cc, input.cc,
interpreter.cc, inv.cc, jsondecode.cc, jsonencode.cc, kron.cc,
load-path.cc, load-save.cc, lookup.cc, ls-oct-text.cc, lsode.cc,
lu.cc, mappers.cc, matrix_type.cc, max.cc, mgorth.cc, nproc.cc,
oct-hist.cc, ordqz.cc, ordschur.cc, pager.cc, pinv.cc, pr-flt-fmt.cc,
pr-output.cc, psi.cc, qr.cc, quad.cc, quadcc.cc, qz.cc, rand.cc,
rcond.cc, regexp.cc, schur.cc, settings.cc, sighandlers.cc, sparse.cc,
spparms.cc, sqrtm.cc, stream-euler.cc, strfind.cc, strfns.cc,
sub2ind.cc, svd.cc, sylvester.cc, symbfact.cc, symrcm.cc, symtab.cc,
syscalls.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc,
typecast.cc, urlwrite.cc, utils.cc, variables.cc, __delaunayn__.cc,
__fltk_uigetfile__.cc, __glpk__.cc, __init_gnuplot__.cc, __ode15__.cc,
__voronoi__.cc, audiodevinfo.cc, audioread.cc, convhulln.cc, fftw.cc,
gzip.cc, ov-base.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc,
ov-classdef.cc, ov-fcn-handle.cc, ov-java.cc, ov-null-mat.cc,
ov-oncleanup.cc, ov-struct.cc, ov-typeinfo.cc, ov-usr-fcn.cc, ov.cc,
octave.cc, lex.ll, oct-parse.yy, profiler.cc, pt-eval.cc: Surround
DEFUN and DEFMETHOD function defnitions with OCTAVE_NAMESPACE_BEGIN
and OCTAVE_NAMESPACE_END tags.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Fri, 13 Aug 2021 21:53:51 -0400 |
parents | 7854d5752dd2 |
children | 7d6709900da7 |
line wrap: on
line source
//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2013-2021 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include "defun.h" #include "error.h" #include "lo-specfun.h" OCTAVE_NAMESPACE_BEGIN DEFUN (ellipj, args, , doc: /* -*- texinfo -*- @deftypefn {} {[@var{sn}, @var{cn}, @var{dn}, @var{err}] =} ellipj (@var{u}, @var{m}) @deftypefnx {} {[@var{sn}, @var{cn}, @var{dn}, @var{err}] =} ellipj (@var{u}, @var{m}, @var{tol}) Compute the Jacobi elliptic functions @var{sn}, @var{cn}, and @var{dn} of complex argument @var{u} and real parameter @var{m}. If @var{m} is a scalar, the results are the same size as @var{u}. If @var{u} is a scalar, the results are the same size as @var{m}. If @var{u} is a column vector and @var{m} is a row vector, the results are matrices with @code{length (@var{u})} rows and @code{length (@var{m})} columns. Otherwise, @var{u} and @var{m} must conform in size and the results will be the same size as the inputs. The value of @var{u} may be complex. The value of @var{m} must be 0 @leq{} @var{m} @leq{} 1. The optional input @var{tol} is currently ignored (@sc{matlab} uses this to allow faster, less accurate approximation). If requested, @var{err} contains the following status information and is the same size as the result. @enumerate 0 @item Normal return. @item Error---no computation, algorithm termination condition not met, return @code{NaN}. @end enumerate Reference: Milton @nospell{Abramowitz} and Irene A @nospell{Stegun}, @cite{Handbook of Mathematical Functions}, Chapter 16 (Sections 16.4, 16.13, and 16.15), Dover, 1965. @seealso{ellipke} @end deftypefn */) { int nargin = args.length (); if (nargin < 2 || nargin > 3) print_usage (); octave_value u_arg = args(0); octave_value m_arg = args(1); if (m_arg.is_scalar_type ()) { double m = args(1).xdouble_value ("ellipj: M must be a scalar or matrix"); if (u_arg.is_scalar_type ()) { if (u_arg.isreal ()) { // u real, m scalar double u = args(0).xdouble_value ("ellipj: U must be a scalar or matrix"); double sn, cn, dn; double err = 0; octave::math::ellipj (u, m, sn, cn, dn, err); return ovl (sn, cn, dn, err); } else { // u complex, m scalar Complex u = u_arg.xcomplex_value ("ellipj: U must be a scalar or matrix"); Complex sn, cn, dn; double err = 0; octave::math::ellipj (u, m, sn, cn, dn, err); return ovl (sn, cn, dn, err); } } else { // u is matrix, m is scalar ComplexNDArray u = u_arg.xcomplex_array_value ("ellipj: U must be a scalar or matrix"); dim_vector sz_u = u.dims (); ComplexNDArray sn (sz_u), cn (sz_u), dn (sz_u); NDArray err (sz_u); const Complex *pu = u.data (); Complex *psn = sn.fortran_vec (); Complex *pcn = cn.fortran_vec (); Complex *pdn = dn.fortran_vec (); double *perr = err.fortran_vec (); octave_idx_type nel = u.numel (); for (octave_idx_type i = 0; i < nel; i++) octave::math::ellipj (pu[i], m, psn[i], pcn[i], pdn[i], perr[i]); return ovl (sn, cn, dn, err); } } else { NDArray m = args(1).xarray_value ("ellipj: M must be a scalar or matrix"); dim_vector sz_m = m.dims (); if (u_arg.is_scalar_type ()) { // u is scalar, m is array if (u_arg.isreal ()) { // u is real scalar, m is array double u = u_arg.xdouble_value ("ellipj: U must be a scalar or matrix"); NDArray sn (sz_m), cn (sz_m), dn (sz_m); NDArray err (sz_m); const double *pm = m.data (); double *psn = sn.fortran_vec (); double *pcn = cn.fortran_vec (); double *pdn = dn.fortran_vec (); double *perr = err.fortran_vec (); octave_idx_type nel = m.numel (); for (octave_idx_type i = 0; i < nel; i++) octave::math::ellipj (u, pm[i], psn[i], pcn[i], pdn[i], perr[i]); return ovl (sn, cn, dn, err); } else { // u is complex scalar, m is array Complex u = u_arg.xcomplex_value ("ellipj: U must be a scalar or matrix"); ComplexNDArray sn (sz_m), cn (sz_m), dn (sz_m); NDArray err (sz_m); const double *pm = m.data (); Complex *psn = sn.fortran_vec (); Complex *pcn = cn.fortran_vec (); Complex *pdn = dn.fortran_vec (); double *perr = err.fortran_vec (); octave_idx_type nel = m.numel (); for (octave_idx_type i = 0; i < nel; i++) octave::math::ellipj (u, pm[i], psn[i], pcn[i], pdn[i], perr[i]); return ovl (sn, cn, dn, err); } } else { // u is array, m is array if (u_arg.isreal ()) { // u is real array, m is array NDArray u = u_arg.xarray_value ("ellipj: U must be a scalar or matrix"); dim_vector sz_u = u.dims (); if (sz_u.ndims () == 2 && sz_m.ndims () == 2 && sz_u(1) == 1 && sz_m(0) == 1) { // u is real column vector, m is row vector octave_idx_type ur = sz_u(0); octave_idx_type mc = sz_m(1); dim_vector sz_out (ur, mc); NDArray sn (sz_out), cn (sz_out), dn (sz_out); NDArray err (sz_out); const double *pu = u.data (); const double *pm = m.data (); for (octave_idx_type j = 0; j < mc; j++) for (octave_idx_type i = 0; i < ur; i++) octave::math::ellipj (pu[i], pm[j], sn(i,j), cn(i,j), dn(i,j), err(i,j)); return ovl (sn, cn, dn, err); } else if (sz_m == sz_u) { NDArray sn (sz_m), cn (sz_m), dn (sz_m); NDArray err (sz_m); const double *pu = u.data (); const double *pm = m.data (); double *psn = sn.fortran_vec (); double *pcn = cn.fortran_vec (); double *pdn = dn.fortran_vec (); double *perr = err.fortran_vec (); octave_idx_type nel = m.numel (); for (octave_idx_type i = 0; i < nel; i++) octave::math::ellipj (pu[i], pm[i], psn[i], pcn[i], pdn[i], perr[i]); return ovl (sn, cn, dn, err); } else error ("ellipj: Invalid size combination for U and M"); } else { // u is complex array, m is array ComplexNDArray u = u_arg.xcomplex_array_value ("ellipj: U must be a scalar or matrix"); dim_vector sz_u = u.dims (); if (sz_u.ndims () == 2 && sz_m.ndims () == 2 && sz_u(1) == 1 && sz_m(0) == 1) { // u is complex column vector, m is row vector octave_idx_type ur = sz_u(0); octave_idx_type mc = sz_m(1); dim_vector sz_out (ur, mc); ComplexNDArray sn (sz_out), cn (sz_out), dn (sz_out); NDArray err (sz_out); const Complex *pu = u.data (); const double *pm = m.data (); for (octave_idx_type j = 0; j < mc; j++) for (octave_idx_type i = 0; i < ur; i++) octave::math::ellipj (pu[i], pm[j], sn(i,j), cn(i,j), dn(i,j), err(i,j)); return ovl (sn, cn, dn, err); } else if (sz_m == sz_u) { ComplexNDArray sn (sz_m), cn (sz_m), dn (sz_m); NDArray err (sz_m); const Complex *pu = u.data (); const double *pm = m.data (); Complex *psn = sn.fortran_vec (); Complex *pcn = cn.fortran_vec (); Complex *pdn = dn.fortran_vec (); double *perr = err.fortran_vec (); octave_idx_type nel = m.numel (); for (octave_idx_type i = 0; i < nel; i++) octave::math::ellipj (pu[i], pm[i], psn[i], pcn[i], pdn[i], perr[i]); return ovl (sn, cn, dn, err); } else error ("ellipj: Invalid size combination for U and M"); } } } // m matrix return ovl (); } /* ## demos taken from inst/ellipj.m %!demo %! N = 150; %! # m = [1-logspace(0,log(eps),N-1), 1]; # m near 1 %! # m = [0, logspace(log(eps),0,N-1)]; # m near 0 %! m = linspace (0,1,N); # m equally spaced %! u = linspace (-20, 20, N); %! M = ones (length (u), 1) * m; %! U = u' * ones (1, length (m)); %! [sn, cn, dn] = ellipj (U,M); %! %! ## Plotting %! data = {sn,cn,dn}; %! dname = {"sn","cn","dn"}; %! for i=1:3 %! subplot (1,3,i); %! data{i}(data{i} > 1) = 1; %! data{i}(data{i} < -1) = -1; %! image (m,u,32*data{i}+32); %! title (dname{i}); %! endfor %! colormap (hot (64)); %!demo %! N = 200; %! # m = [1-logspace(0,log(eps),N-1), 1]; # m near 1 %! # m = [0, logspace(log(eps),0,N-1)]; # m near 0 %! m = linspace (0,1,N); # m equally spaced %! u = linspace (0,20,5); %! M = ones (length (u), 1) * m; %! U = u' * ones (1, length (m)); %! [sn, cn, dn] = ellipj (U,M); %! %! ## Plotting %! data = {sn,cn,dn}; %! dname = {"sn","cn","dn"}; %! for i=1:3 %! subplot (1,3,i); %! plot (m, data{i}); %! title (dname{i}); %! grid on; %! endfor */ /* ## tests taken from inst/test_sncndn.m %!test %! k = (tan (pi/8))^2; m = k*k; %! SN = [ %! -1. + I * 0. , -0.8392965923 + 0. * I %! -1. + I * 0.2 , -0.8559363407 + 0.108250955 * I %! -1. + I * 0.4 , -0.906529758 + 0.2204040232 * I %! -1. + I * 0.6 , -0.9931306727 + 0.3403783409 * I %! -1. + I * 0.8 , -1.119268095 + 0.4720784944 * I %! -1. + I * 1. , -1.29010951 + 0.6192468708 * I %! -1. + I * 1.2 , -1.512691987 + 0.7850890595 * I %! -1. + I * 1.4 , -1.796200374 + 0.9714821804 * I %! -1. + I * 1.6 , -2.152201882 + 1.177446413 * I %! -1. + I * 1.8 , -2.594547417 + 1.396378892 * I %! -1. + I * 2. , -3.138145339 + 1.611394819 * I %! -0.8 + I * 0. , -0.7158157937 + 0. * I %! -0.8 + I * 0.2 , -0.7301746722 + 0.1394690862 * I %! -0.8 + I * 0.4 , -0.7738940898 + 0.2841710966 * I %! -0.8 + I * 0.6 , -0.8489542135 + 0.4394411376 * I %! -0.8 + I * 0.8 , -0.9588386397 + 0.6107824358 * I %! -0.8 + I * 1. , -1.108848724 + 0.8038415767 * I %! -0.8 + I * 1.2 , -1.306629972 + 1.024193359 * I %! -0.8 + I * 1.4 , -1.563010199 + 1.276740951 * I %! -0.8 + I * 1.6 , -1.893274688 + 1.564345558 * I %! -0.8 + I * 1.8 , -2.318944084 + 1.88491973 * I %! -0.8 + I * 2. , -2.869716809 + 2.225506523 * I %! -0.6 + I * 0. , -0.5638287208 + 0. * I %! -0.6 + I * 0.2 , -0.5752723012 + 0.1654722474 * I %! -0.6 + I * 0.4 , -0.610164314 + 0.3374004736 * I %! -0.6 + I * 0.6 , -0.6702507087 + 0.5224614298 * I %! -0.6 + I * 0.8 , -0.7586657365 + 0.7277663879 * I %! -0.6 + I * 1. , -0.8803349115 + 0.9610513652 * I %! -0.6 + I * 1.2 , -1.042696526 + 1.230800819 * I %! -0.6 + I * 1.4 , -1.256964505 + 1.546195843 * I %! -0.6 + I * 1.6 , -1.540333527 + 1.916612621 * I %! -0.6 + I * 1.8 , -1.919816065 + 2.349972151 * I %! -0.6 + I * 2. , -2.438761841 + 2.848129496 * I %! -0.4 + I * 0. , -0.3891382858 + 0. * I %! -0.4 + I * 0.2 , -0.3971152026 + 0.1850563793 * I %! -0.4 + I * 0.4 , -0.4214662882 + 0.3775700801 * I %! -0.4 + I * 0.6 , -0.4635087491 + 0.5853434119 * I %! -0.4 + I * 0.8 , -0.5256432877 + 0.8168992398 * I %! -0.4 + I * 1. , -0.611733177 + 1.081923504 * I %! -0.4 + I * 1.2 , -0.7278102331 + 1.391822501 * I %! -0.4 + I * 1.4 , -0.8833807998 + 1.760456461 * I %! -0.4 + I * 1.6 , -1.093891878 + 2.205107766 * I %! -0.4 + I * 1.8 , -1.385545188 + 2.747638761 * I %! -0.4 + I * 2. , -1.805081271 + 3.41525351 * I %! -0.2 + I * 0. , -0.1986311721 + 0. * I %! -0.2 + I * 0.2 , -0.2027299916 + 0.1972398665 * I %! -0.2 + I * 0.4 , -0.2152524522 + 0.402598347 * I %! -0.2 + I * 0.6 , -0.2369100139 + 0.6246336356 * I %! -0.2 + I * 0.8 , -0.2690115146 + 0.8728455227 * I %! -0.2 + I * 1. , -0.3136938773 + 1.158323088 * I %! -0.2 + I * 1.2 , -0.3743615191 + 1.494672508 * I %! -0.2 + I * 1.4 , -0.4565255082 + 1.899466033 * I %! -0.2 + I * 1.6 , -0.5694611346 + 2.39667232 * I %! -0.2 + I * 1.8 , -0.7296612675 + 3.020990664 * I %! -0.2 + I * 2. , -0.9685726188 + 3.826022536 * I %! 0. + I * 0. , 0. + 0. * I %! 0. + I * 0.2 , 0. + 0.201376364 * I %! 0. + I * 0.4 , 0. + 0.4111029248 * I %! 0. + I * 0.6 , 0. + 0.6380048435 * I %! 0. + I * 0.8 , 0. + 0.8919321473 * I %! 0. + I * 1. , 0. + 1.184486615 * I %! 0. + I * 1.2 , 0. + 1.530096023 * I %! 0. + I * 1.4 , 0. + 1.947754612 * I %! 0. + I * 1.6 , 0. + 2.464074356 * I %! 0. + I * 1.8 , 0. + 3.119049475 * I %! 0. + I * 2. , 0. + 3.97786237 * I %! 0.2 + I * 0. , 0.1986311721 + 0. * I %! 0.2 + I * 0.2 , 0.2027299916 + 0.1972398665 * I %! 0.2 + I * 0.4 , 0.2152524522 + 0.402598347 * I %! 0.2 + I * 0.6 , 0.2369100139 + 0.6246336356 * I %! 0.2 + I * 0.8 , 0.2690115146 + 0.8728455227 * I %! 0.2 + I * 1. , 0.3136938773 + 1.158323088 * I %! 0.2 + I * 1.2 , 0.3743615191 + 1.494672508 * I %! 0.2 + I * 1.4 , 0.4565255082 + 1.899466033 * I %! 0.2 + I * 1.6 , 0.5694611346 + 2.39667232 * I %! 0.2 + I * 1.8 , 0.7296612675 + 3.020990664 * I %! 0.2 + I * 2. , 0.9685726188 + 3.826022536 * I %! 0.4 + I * 0. , 0.3891382858 + 0. * I %! 0.4 + I * 0.2 , 0.3971152026 + 0.1850563793 * I %! 0.4 + I * 0.4 , 0.4214662882 + 0.3775700801 * I %! 0.4 + I * 0.6 , 0.4635087491 + 0.5853434119 * I %! 0.4 + I * 0.8 , 0.5256432877 + 0.8168992398 * I %! 0.4 + I * 1. , 0.611733177 + 1.081923504 * I %! 0.4 + I * 1.2 , 0.7278102331 + 1.391822501 * I %! 0.4 + I * 1.4 , 0.8833807998 + 1.760456461 * I %! 0.4 + I * 1.6 , 1.093891878 + 2.205107766 * I %! 0.4 + I * 1.8 , 1.385545188 + 2.747638761 * I %! 0.4 + I * 2. , 1.805081271 + 3.41525351 * I %! 0.6 + I * 0. , 0.5638287208 + 0. * I %! 0.6 + I * 0.2 , 0.5752723012 + 0.1654722474 * I %! 0.6 + I * 0.4 , 0.610164314 + 0.3374004736 * I %! 0.6 + I * 0.6 , 0.6702507087 + 0.5224614298 * I %! 0.6 + I * 0.8 , 0.7586657365 + 0.7277663879 * I %! 0.6 + I * 1. , 0.8803349115 + 0.9610513652 * I %! 0.6 + I * 1.2 , 1.042696526 + 1.230800819 * I %! 0.6 + I * 1.4 , 1.256964505 + 1.546195843 * I %! 0.6 + I * 1.6 , 1.540333527 + 1.916612621 * I %! 0.6 + I * 1.8 , 1.919816065 + 2.349972151 * I %! 0.6 + I * 2. , 2.438761841 + 2.848129496 * I %! 0.8 + I * 0. , 0.7158157937 + 0. * I %! 0.8 + I * 0.2 , 0.7301746722 + 0.1394690862 * I %! 0.8 + I * 0.4 , 0.7738940898 + 0.2841710966 * I %! 0.8 + I * 0.6 , 0.8489542135 + 0.4394411376 * I %! 0.8 + I * 0.8 , 0.9588386397 + 0.6107824358 * I %! 0.8 + I * 1. , 1.108848724 + 0.8038415767 * I %! 0.8 + I * 1.2 , 1.306629972 + 1.024193359 * I %! 0.8 + I * 1.4 , 1.563010199 + 1.276740951 * I %! 0.8 + I * 1.6 , 1.893274688 + 1.564345558 * I %! 0.8 + I * 1.8 , 2.318944084 + 1.88491973 * I %! 0.8 + I * 2. , 2.869716809 + 2.225506523 * I %! 1. + I * 0. , 0.8392965923 + 0. * I %! 1. + I * 0.2 , 0.8559363407 + 0.108250955 * I %! 1. + I * 0.4 , 0.906529758 + 0.2204040232 * I %! 1. + I * 0.6 , 0.9931306727 + 0.3403783409 * I %! 1. + I * 0.8 , 1.119268095 + 0.4720784944 * I %! 1. + I * 1. , 1.29010951 + 0.6192468708 * I %! 1. + I * 1.2 , 1.512691987 + 0.7850890595 * I %! 1. + I * 1.4 , 1.796200374 + 0.9714821804 * I %! 1. + I * 1.6 , 2.152201882 + 1.177446413 * I %! 1. + I * 1.8 , 2.594547417 + 1.396378892 * I %! 1. + I * 2. , 3.138145339 + 1.611394819 * I %! ]; %! CN = [ %! -1. + I * 0. , 0.5436738271 + 0. * I %! -1. + I * 0.2 , 0.5541219664 + 0.1672121517 * I %! -1. + I * 0.4 , 0.5857703552 + 0.3410940893 * I %! -1. + I * 0.6 , 0.6395034233 + 0.5285979063 * I %! -1. + I * 0.8 , 0.716688504 + 0.7372552987 * I %! -1. + I * 1. , 0.8189576795 + 0.9755037374 * I %! -1. + I * 1.2 , 0.9477661951 + 1.253049471 * I %! -1. + I * 1.4 , 1.103540657 + 1.581252712 * I %! -1. + I * 1.6 , 1.284098214 + 1.973449038 * I %! -1. + I * 1.8 , 1.481835651 + 2.4449211 * I %! -1. + I * 2. , 1.679032464 + 3.011729224 * I %! -0.8 + I * 0. , 0.6982891589 + 0. * I %! -0.8 + I * 0.2 , 0.71187169 + 0.1430549855 * I %! -0.8 + I * 0.4 , 0.7530744458 + 0.2920273465 * I %! -0.8 + I * 0.6 , 0.8232501212 + 0.4531616768 * I %! -0.8 + I * 0.8 , 0.9245978896 + 0.6334016187 * I %! -0.8 + I * 1. , 1.060030206 + 0.8408616109 * I %! -0.8 + I * 1.2 , 1.232861756 + 1.085475913 * I %! -0.8 + I * 1.4 , 1.446126965 + 1.379933558 * I %! -0.8 + I * 1.6 , 1.701139468 + 1.741030588 * I %! -0.8 + I * 1.8 , 1.994526268 + 2.191509596 * I %! -0.8 + I * 2. , 2.312257188 + 2.762051518 * I %! -0.6 + I * 0. , 0.8258917445 + 0. * I %! -0.6 + I * 0.2 , 0.842151698 + 0.1130337928 * I %! -0.6 + I * 0.4 , 0.8915487431 + 0.2309124769 * I %! -0.6 + I * 0.6 , 0.975948103 + 0.3588102098 * I %! -0.6 + I * 0.8 , 1.098499209 + 0.5026234141 * I %! -0.6 + I * 1. , 1.263676101 + 0.6695125973 * I %! -0.6 + I * 1.2 , 1.477275851 + 0.8687285705 * I %! -0.6 + I * 1.4 , 1.746262523 + 1.112955966 * I %! -0.6 + I * 1.6 , 2.078179075 + 1.420581466 * I %! -0.6 + I * 1.8 , 2.479425208 + 1.819580713 * I %! -0.6 + I * 2. , 2.950586798 + 2.354077344 * I %! -0.4 + I * 0. , 0.9211793498 + 0. * I %! -0.4 + I * 0.2 , 0.9395019377 + 0.07822091534 * I %! -0.4 + I * 0.4 , 0.9952345231 + 0.1598950363 * I %! -0.4 + I * 0.6 , 1.090715991 + 0.2487465067 * I %! -0.4 + I * 0.8 , 1.229998843 + 0.34910407 * I %! -0.4 + I * 1. , 1.419103868 + 0.4663848201 * I %! -0.4 + I * 1.2 , 1.666426377 + 0.607877235 * I %! -0.4 + I * 1.4 , 1.983347336 + 0.7841054404 * I %! -0.4 + I * 1.6 , 2.385101684 + 1.01134031 * I %! -0.4 + I * 1.8 , 2.89185416 + 1.316448705 * I %! -0.4 + I * 2. , 3.529393374 + 1.74670531 * I %! -0.2 + I * 0. , 0.9800743122 + 0. * I %! -0.2 + I * 0.2 , 0.9997019476 + 0.03999835809 * I %! -0.2 + I * 0.4 , 1.059453907 + 0.08179712295 * I %! -0.2 + I * 0.6 , 1.16200643 + 0.1273503824 * I %! -0.2 + I * 0.8 , 1.312066413 + 0.1789585449 * I %! -0.2 + I * 1. , 1.516804331 + 0.2395555269 * I %! -0.2 + I * 1.2 , 1.786613221 + 0.313189147 * I %! -0.2 + I * 1.4 , 2.136422971 + 0.405890925 * I %! -0.2 + I * 1.6 , 2.588021972 + 0.527357091 * I %! -0.2 + I * 1.8 , 3.174302819 + 0.6944201617 * I %! -0.2 + I * 2. , 3.947361147 + 0.9387994989 * I %! 0. + I * 0. , 1. + 0. * I %! 0. + I * 0.2 , 1.020074723 + 0. * I %! 0. + I * 0.4 , 1.08120563 + 0. * I %! 0. + I * 0.6 , 1.18619146 + 0. * I %! 0. + I * 0.8 , 1.339978715 + 0. * I %! 0. + I * 1. , 1.550164037 + 0. * I %! 0. + I * 1.2 , 1.827893279 + 0. * I %! 0. + I * 1.4 , 2.189462954 + 0. * I %! 0. + I * 1.6 , 2.659259752 + 0. * I %! 0. + I * 1.8 , 3.275434266 + 0. * I %! 0. + I * 2. , 4.101632484 + 0. * I %! 0.2 + I * 0. , 0.9800743122 + 0. * I %! 0.2 + I * 0.2 , 0.9997019476 - 0.03999835809 * I %! 0.2 + I * 0.4 , 1.059453907 - 0.08179712295 * I %! 0.2 + I * 0.6 , 1.16200643 - 0.1273503824 * I %! 0.2 + I * 0.8 , 1.312066413 - 0.1789585449 * I %! 0.2 + I * 1. , 1.516804331 - 0.2395555269 * I %! 0.2 + I * 1.2 , 1.786613221 - 0.313189147 * I %! 0.2 + I * 1.4 , 2.136422971 - 0.405890925 * I %! 0.2 + I * 1.6 , 2.588021972 - 0.527357091 * I %! 0.2 + I * 1.8 , 3.174302819 - 0.6944201617 * I %! 0.2 + I * 2. , 3.947361147 - 0.9387994989 * I %! 0.4 + I * 0. , 0.9211793498 + 0. * I %! 0.4 + I * 0.2 , 0.9395019377 - 0.07822091534 * I %! 0.4 + I * 0.4 , 0.9952345231 - 0.1598950363 * I %! 0.4 + I * 0.6 , 1.090715991 - 0.2487465067 * I %! 0.4 + I * 0.8 , 1.229998843 - 0.34910407 * I %! 0.4 + I * 1. , 1.419103868 - 0.4663848201 * I %! 0.4 + I * 1.2 , 1.666426377 - 0.607877235 * I %! 0.4 + I * 1.4 , 1.983347336 - 0.7841054404 * I %! 0.4 + I * 1.6 , 2.385101684 - 1.01134031 * I %! 0.4 + I * 1.8 , 2.89185416 - 1.316448705 * I %! 0.4 + I * 2. , 3.529393374 - 1.74670531 * I %! 0.6 + I * 0. , 0.8258917445 + 0. * I %! 0.6 + I * 0.2 , 0.842151698 - 0.1130337928 * I %! 0.6 + I * 0.4 , 0.8915487431 - 0.2309124769 * I %! 0.6 + I * 0.6 , 0.975948103 - 0.3588102098 * I %! 0.6 + I * 0.8 , 1.098499209 - 0.5026234141 * I %! 0.6 + I * 1. , 1.263676101 - 0.6695125973 * I %! 0.6 + I * 1.2 , 1.477275851 - 0.8687285705 * I %! 0.6 + I * 1.4 , 1.746262523 - 1.112955966 * I %! 0.6 + I * 1.6 , 2.078179075 - 1.420581466 * I %! 0.6 + I * 1.8 , 2.479425208 - 1.819580713 * I %! 0.6 + I * 2. , 2.950586798 - 2.354077344 * I %! 0.8 + I * 0. , 0.6982891589 + 0. * I %! 0.8 + I * 0.2 , 0.71187169 - 0.1430549855 * I %! 0.8 + I * 0.4 , 0.7530744458 - 0.2920273465 * I %! 0.8 + I * 0.6 , 0.8232501212 - 0.4531616768 * I %! 0.8 + I * 0.8 , 0.9245978896 - 0.6334016187 * I %! 0.8 + I * 1. , 1.060030206 - 0.8408616109 * I %! 0.8 + I * 1.2 , 1.232861756 - 1.085475913 * I %! 0.8 + I * 1.4 , 1.446126965 - 1.379933558 * I %! 0.8 + I * 1.6 , 1.701139468 - 1.741030588 * I %! 0.8 + I * 1.8 , 1.994526268 - 2.191509596 * I %! 0.8 + I * 2. , 2.312257188 - 2.762051518 * I %! 1. + I * 0. , 0.5436738271 + 0. * I %! 1. + I * 0.2 , 0.5541219664 - 0.1672121517 * I %! 1. + I * 0.4 , 0.5857703552 - 0.3410940893 * I %! 1. + I * 0.6 , 0.6395034233 - 0.5285979063 * I %! 1. + I * 0.8 , 0.716688504 - 0.7372552987 * I %! 1. + I * 1. , 0.8189576795 - 0.9755037374 * I %! 1. + I * 1.2 , 0.9477661951 - 1.253049471 * I %! 1. + I * 1.4 , 1.103540657 - 1.581252712 * I %! 1. + I * 1.6 , 1.284098214 - 1.973449038 * I %! 1. + I * 1.8 , 1.481835651 - 2.4449211 * I %! 1. + I * 2. , 1.679032464 - 3.011729224 * I %! ]; %! DN = [ %! -1. + I * 0. , 0.9895776106 + 0. * I %! -1. + I * 0.2 , 0.9893361555 + 0.002756935338 * I %! -1. + I * 0.4 , 0.9885716856 + 0.005949639805 * I %! -1. + I * 0.6 , 0.9871564855 + 0.01008044183 * I %! -1. + I * 0.8 , 0.9848512162 + 0.01579337596 * I %! -1. + I * 1. , 0.9812582484 + 0.02396648455 * I %! -1. + I * 1.2 , 0.9757399152 + 0.0358288294 * I %! -1. + I * 1.4 , 0.9672786056 + 0.0531049859 * I %! -1. + I * 1.6 , 0.954237868 + 0.0781744383 * I %! -1. + I * 1.8 , 0.933957524 + 0.1141918269 * I %! -1. + I * 2. , 0.9020917489 + 0.1650142936 * I %! -0.8 + I * 0. , 0.992429635 + 0. * I %! -0.8 + I * 0.2 , 0.9924147861 + 0.003020708044 * I %! -0.8 + I * 0.4 , 0.99236555 + 0.00652359532 * I %! -0.8 + I * 0.6 , 0.9922655715 + 0.0110676219 * I %! -0.8 + I * 0.8 , 0.9920785856 + 0.01737733806 * I %! -0.8 + I * 1. , 0.9917291795 + 0.02645738598 * I %! -0.8 + I * 1.2 , 0.9910606387 + 0.03974949378 * I %! -0.8 + I * 1.4 , 0.9897435004 + 0.05935252515 * I %! -0.8 + I * 1.6 , 0.987077644 + 0.08832675281 * I %! -0.8 + I * 1.8 , 0.9815667458 + 0.1310872821 * I %! -0.8 + I * 2. , 0.970020127 + 0.1938136793 * I %! -0.6 + I * 0. , 0.9953099088 + 0. * I %! -0.6 + I * 0.2 , 0.995526009 + 0.002814772354 * I %! -0.6 + I * 0.4 , 0.9962071136 + 0.006083312292 * I %! -0.6 + I * 0.6 , 0.9974557125 + 0.01033463525 * I %! -0.6 + I * 0.8 , 0.9994560563 + 0.01626207722 * I %! -0.6 + I * 1. , 1.00249312 + 0.02484336286 * I %! -0.6 + I * 1.2 , 1.006973922 + 0.0375167093 * I %! -0.6 + I * 1.4 , 1.013436509 + 0.05645315628 * I %! -0.6 + I * 1.6 , 1.022504295 + 0.08499262247 * I %! -0.6 + I * 1.8 , 1.034670023 + 0.1283564595 * I %! -0.6 + I * 2. , 1.049599899 + 0.194806122 * I %! -0.4 + I * 0. , 0.9977686897 + 0. * I %! -0.4 + I * 0.2 , 0.9981836165 + 0.002167241934 * I %! -0.4 + I * 0.4 , 0.9994946045 + 0.004686808612 * I %! -0.4 + I * 0.6 , 1.001910789 + 0.00797144174 * I %! -0.4 + I * 0.8 , 1.005817375 + 0.01256717724 * I %! -0.4 + I * 1. , 1.011836374 + 0.01925509038 * I %! -0.4 + I * 1.2 , 1.020923572 + 0.02920828367 * I %! -0.4 + I * 1.4 , 1.034513743 + 0.04425213602 * I %! -0.4 + I * 1.6 , 1.054725746 + 0.06732276244 * I %! -0.4 + I * 1.8 , 1.08462027 + 0.1033236812 * I %! -0.4 + I * 2. , 1.128407402 + 0.1608240664 * I %! -0.2 + I * 0. , 0.9994191176 + 0. * I %! -0.2 + I * 0.2 , 0.9999683719 + 0.001177128019 * I %! -0.2 + I * 0.4 , 1.001705496 + 0.00254669712 * I %! -0.2 + I * 0.6 , 1.004913944 + 0.004334880912 * I %! -0.2 + I * 0.8 , 1.010120575 + 0.006842775622 * I %! -0.2 + I * 1. , 1.018189543 + 0.01050520136 * I %! -0.2 + I * 1.2 , 1.030482479 + 0.01598431001 * I %! -0.2 + I * 1.4 , 1.049126108 + 0.02433134655 * I %! -0.2 + I * 1.6 , 1.077466003 + 0.0372877718 * I %! -0.2 + I * 1.8 , 1.120863308 + 0.05789156398 * I %! -0.2 + I * 2. , 1.188162088 + 0.09181238708 * I %! 0. + I * 0. , 1. + 0. * I %! 0. + I * 0.2 , 1.000596698 + 0. * I %! 0. + I * 0.4 , 1.002484444 + 0. * I %! 0. + I * 0.6 , 1.005973379 + 0. * I %! 0. + I * 0.8 , 1.011641536 + 0. * I %! 0. + I * 1. , 1.020441432 + 0. * I %! 0. + I * 1.2 , 1.033885057 + 0. * I %! 0. + I * 1.4 , 1.054361188 + 0. * I %! 0. + I * 1.6 , 1.085694733 + 0. * I %! 0. + I * 1.8 , 1.134186672 + 0. * I %! 0. + I * 2. , 1.210701071 + 0. * I %! 0.2 + I * 0. , 0.9994191176 + 0. * I %! 0.2 + I * 0.2 , 0.9999683719 - 0.001177128019 * I %! 0.2 + I * 0.4 , 1.001705496 - 0.00254669712 * I %! 0.2 + I * 0.6 , 1.004913944 - 0.004334880912 * I %! 0.2 + I * 0.8 , 1.010120575 - 0.006842775622 * I %! 0.2 + I * 1. , 1.018189543 - 0.01050520136 * I %! 0.2 + I * 1.2 , 1.030482479 - 0.01598431001 * I %! 0.2 + I * 1.4 , 1.049126108 - 0.02433134655 * I %! 0.2 + I * 1.6 , 1.077466003 - 0.0372877718 * I %! 0.2 + I * 1.8 , 1.120863308 - 0.05789156398 * I %! 0.2 + I * 2. , 1.188162088 - 0.09181238708 * I %! 0.4 + I * 0. , 0.9977686897 + 0. * I %! 0.4 + I * 0.2 , 0.9981836165 - 0.002167241934 * I %! 0.4 + I * 0.4 , 0.9994946045 - 0.004686808612 * I %! 0.4 + I * 0.6 , 1.001910789 - 0.00797144174 * I %! 0.4 + I * 0.8 , 1.005817375 - 0.01256717724 * I %! 0.4 + I * 1. , 1.011836374 - 0.01925509038 * I %! 0.4 + I * 1.2 , 1.020923572 - 0.02920828367 * I %! 0.4 + I * 1.4 , 1.034513743 - 0.04425213602 * I %! 0.4 + I * 1.6 , 1.054725746 - 0.06732276244 * I %! 0.4 + I * 1.8 , 1.08462027 - 0.1033236812 * I %! 0.4 + I * 2. , 1.128407402 - 0.1608240664 * I %! 0.6 + I * 0. , 0.9953099088 + 0. * I %! 0.6 + I * 0.2 , 0.995526009 - 0.002814772354 * I %! 0.6 + I * 0.4 , 0.9962071136 - 0.006083312292 * I %! 0.6 + I * 0.6 , 0.9974557125 - 0.01033463525 * I %! 0.6 + I * 0.8 , 0.9994560563 - 0.01626207722 * I %! 0.6 + I * 1. , 1.00249312 - 0.02484336286 * I %! 0.6 + I * 1.2 , 1.006973922 - 0.0375167093 * I %! 0.6 + I * 1.4 , 1.013436509 - 0.05645315628 * I %! 0.6 + I * 1.6 , 1.022504295 - 0.08499262247 * I %! 0.6 + I * 1.8 , 1.034670023 - 0.1283564595 * I %! 0.6 + I * 2. , 1.049599899 - 0.194806122 * I %! 0.8 + I * 0. , 0.992429635 + 0. * I %! 0.8 + I * 0.2 , 0.9924147861 - 0.003020708044 * I %! 0.8 + I * 0.4 , 0.99236555 - 0.00652359532 * I %! 0.8 + I * 0.6 , 0.9922655715 - 0.0110676219 * I %! 0.8 + I * 0.8 , 0.9920785856 - 0.01737733806 * I %! 0.8 + I * 1. , 0.9917291795 - 0.02645738598 * I %! 0.8 + I * 1.2 , 0.9910606387 - 0.03974949378 * I %! 0.8 + I * 1.4 , 0.9897435004 - 0.05935252515 * I %! 0.8 + I * 1.6 , 0.987077644 - 0.08832675281 * I %! 0.8 + I * 1.8 , 0.9815667458 - 0.1310872821 * I %! 0.8 + I * 2. , 0.970020127 - 0.1938136793 * I %! 1. + I * 0. , 0.9895776106 + 0. * I %! 1. + I * 0.2 , 0.9893361555 - 0.002756935338 * I %! 1. + I * 0.4 , 0.9885716856 - 0.005949639805 * I %! 1. + I * 0.6 , 0.9871564855 - 0.01008044183 * I %! 1. + I * 0.8 , 0.9848512162 - 0.01579337596 * I %! 1. + I * 1. , 0.9812582484 - 0.02396648455 * I %! 1. + I * 1.2 , 0.9757399152 - 0.0358288294 * I %! 1. + I * 1.4 , 0.9672786056 - 0.0531049859 * I %! 1. + I * 1.6 , 0.954237868 - 0.0781744383 * I %! 1. + I * 1.8 , 0.933957524 - 0.1141918269 * I %! 1. + I * 2. , 0.9020917489 - 0.1650142936 * I %! ]; %! tol = 1e-9; %! for x = 0:10 %! for y = 0:10 %! ur = -1 + x * 0.2; %! ui = y * 0.2; %! ii = 1 + y + x*11; %! [sn, cn, dn] = ellipj (ur + I * ui, m); %! assert (sn, SN(ii, 2), tol); %! assert (cn, CN(ii, 2), tol); %! assert (dn, DN(ii, 2), tol); %! endfor %! endfor ## tests taken from test_ellipj.m %!test %! u1 = pi/3; m1 = 0; %! res1 = [sin(pi/3), cos(pi/3), 1]; %! [sn,cn,dn] = ellipj (u1,m1); %! assert ([sn,cn,dn], res1, 10*eps); %!test %! u2 = log (2); m2 = 1; %! res2 = [ 3/5, 4/5, 4/5 ]; %! [sn,cn,dn] = ellipj (u2,m2); %! assert ([sn,cn,dn], res2, 10*eps); %!test %! u3 = log (2)*1i; m3 = 0; %! res3 = [3i/4,5/4,1]; %! [sn,cn,dn] = ellipj (u3,m3); %! assert ([sn,cn,dn], res3, 10*eps); %!test %! u4 = -1; m4 = tan (pi/8)^4; %! res4 = [-0.8392965923,0.5436738271,0.9895776106]; %! [sn,cn,dn] = ellipj (u4, m4); %! assert ([sn,cn,dn], res4, 1e-10); %!test %! u5 = -0.2 + 0.4i; m5 = tan (pi/8)^4; %! res5 = [ -0.2152524522 + 0.402598347i, ... %! 1.059453907 + 0.08179712295i, ... %! 1.001705496 + 0.00254669712i ]; %! [sn,cn,dn] = ellipj (u5,m5); %! assert ([sn,cn,dn], res5, 1e-9); %!test %! u6 = 0.2 + 0.6i; m6 = tan (pi/8)^4; %! res6 = [ 0.2369100139 + 0.624633635i, ... %! 1.16200643 - 0.1273503824i, ... %! 1.004913944 - 0.004334880912i ]; %! [sn,cn,dn] = ellipj (u6,m6); %! assert ([sn,cn,dn], res6, 1e-8); %!test %! u7 = 0.8 + 0.8i; m7 = tan (pi/8)^4; %! res7 = [0.9588386397 + 0.6107824358i, ... %! 0.9245978896 - 0.6334016187i, ... %! 0.9920785856 - 0.01737733806i ]; %! [sn,cn,dn] = ellipj (u7,m7); %! assert ([sn,cn,dn], res7, 1e-10); %!test %! u = [0,pi/6,pi/4,pi/2]; m=0; %! res = [0,1/2,1/sqrt(2),1;1,cos(pi/6),1/sqrt(2),0;1,1,1,1]; %! [sn,cn,dn] = ellipj (u,m); %! assert ([sn;cn;dn], res, 100*eps); %! [sn,cn,dn] = ellipj (u',0); %! assert ([sn,cn,dn], res', 100*eps); ## FIXME: need to check [real,complex]x[scalar,rowvec,colvec,matrix]x[u,m] ## One test for u column vector x m row vector %!test %! u = [0,pi/6,pi/4,pi/2]'; m = [0 0 0 0]; %! res = [0,1/2,1/sqrt(2),1;1,cos(pi/6),1/sqrt(2),0;1,1,1,1]'; %! [sn,cn,dn] = ellipj (u,m); %! assert (sn, repmat (res(:,1), [1,4]), 100*eps); %! assert (cn, repmat (res(:,2), [1,4]), 100*eps); %! assert (dn, repmat (res(:,3), [1,4]), 100*eps); %!test %! ## Test Jacobi elliptic functions %! ## against "exact" solution from Mathematica 3.0 %! ## David Billinghurst <David.Billinghurst@riotinto.com> %! ## 1 February 2001 %! u = [ 0.25; 0.25; 0.20; 0.20; 0.672; 0.5]; %! m = [ 0.0; 1.0; 0.19; 0.81; 0.36; 0.9999999999]; %! S = [ sin(0.25); %! tanh(0.25); %! 0.19842311013970879516; %! 0.19762082367187648571; %! 0.6095196917919021945; %! 0.4621171572617320908 ]; %! C = [ cos(0.25); %! sech(0.25); %! 0.9801164570409401062; %! 0.9802785369736752032; %! 0.7927709286533560550; %! 0.8868188839691764094 ]; %! D = [ 1.0; %! sech(0.25); %! 0.9962526643271134302; %! 0.9840560289645665155; %! 0.9307281387786906491; %! 0.8868188839812167635 ]; %! [sn,cn,dn] = ellipj (u,m); %! assert (sn, S, 8*eps); %! assert (cn, C, 8*eps); %! assert (dn, D, 8*eps); %!test <*43344> %! ## Test continuity of dn when cn is near zero %! m = 0.5; %! u = ellipke (0.5); %! x = [-1e-3, -1e-12, 0, 1e-12, 1e-3]; %! [~, ~, dn] = ellipj (u + x, m); %! D = 1/sqrt (2) * ones (size (x)); %! assert (dn, D, 1e-6); %!error ellipj () %!error ellipj (1) %!error ellipj (1,2,3,4) %!warning <required value 0 <= M <= 1> ellipj (1,2); ## FIXME: errors commented out until lasterr() truly returns the last error. %!#error <M must be a scalar or matrix> ellipj (1, "1") %!#error <U must be a scalar or matrix> ellipj ("1", 1) %!#error <U must be a scalar or matrix> ellipj ({1}, 1) %!#error <U must be a scalar or matrix> ellipj ({1, 2}, 1) %!#error <M must be a scalar or matrix> ellipj (1, {1, 2}) %!#error <U must be a scalar or matrix> ellipj ("1", [1, 2]) %!#error <U must be a scalar or matrix> ellipj ({1}, [1, 2]) %!#error <U must be a scalar or matrix> ellipj ({1}, [1, 2]) %!#error <U must be a scalar or matrix> ellipj ("1,2", [1, 2]) %!#error <U must be a scalar or matrix> ellipj ({1, 2}, [1, 2]) %!error <Invalid size combination for U and M> ellipj ([1:4], [1:3]) %!error <Invalid size combination for U and M> ellipj (complex (1:4,1:4), [1:3]) */ OCTAVE_NAMESPACE_END