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Chebfun V4

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Chebfun V4

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30 Apr 2009 (Updated )

Numerical computation with functions instead of numbers.

Editor's Notes:

This file was selected as MATLAB Central Pick of the Week

chebop_diff
function pass = chebop_diff
% Checks if the differentiation chebop is equivalent to differentiating
% a chebfun.

d = [-3,-1.5];
D = chebop(@(u) diff(u), d);
f = chebfun(@(x) exp(sin(x).^2+2),d);
pass = norm(D*f - diff(f)) < chebfunpref('eps');

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