% m28chebfun.m - Chebfun solution of the same equation

L = chebop(0,3);
L.op = @(t,u) diff(u) - u*tanh(exp(t)*sin(5*t));
L.lbc = 1;
u = L\0
plot(u)
err = u(3) - 1.403737560405910;
title(['err = ' num2str(err)],FS,16)

% For further explorations try length(u) and plot(u,'.').
% Then repeat with L.domain = [0 6].  Such use of a global
% polynomial of very high degree is pretty extreme.
% For a more local representation, rerun after "splitting on".