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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_ivp
function pass = chebop_ivp
% This tests solves a linear IVP using chebop and checks
% that the computed solution is accurate.

tol = chebfunpref('eps');

d = [-1,1];
x = chebfun(@(x) x,d);
A = chebop(@(u) diff(u)-u,d);
A.lbc = exp(-1)-1;
u = A\(1-x);
pass = norm( u - (exp(x)+x) ) < 100*tol;

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