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ellipj

PURPOSE ^

% error: [sn,cn,dn] = ellipj(u,m[,tol])

SYNOPSIS ^

function [sn, cn, dn] = ellipj (u, m)

DESCRIPTION ^

% error: [sn,cn,dn] = ellipj(u,m[,tol])
%
% Compute the Jacobi elliptic functions sn(u|m), cn(u|m) and dn(u|m)
% for complex argument u and parameter 0 <= m <= 1.
%
% WARNING: the approximation blows up for abs(u)>20 near m=1.
%
% tol is accepted for compatibility, but ignored
%
% Ref: Abramowitz, Milton and Stegun, Irene A
%      Handbook of Mathematical Functions, Dover, 1965
%      Chapter 16 (Sections 16.4, 16.13 and 16.15)
%
% Example
%    m = linspace(0,1,200); u=linspace(-10,10,200);
%    [U,M] = meshgrid(u,m);
%    [sn, cn, dn] = ellipj(U,M);
%    imagesc(sn);
%
% See also: ellipke

CROSS-REFERENCE INFORMATION ^

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