two functions with descriptions in one graph
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Answered: Walter Roberson on 28 Nov 2020
for this code:
% approximating f
legend_strs = compose('Approximate f with h=%.2d', h);
I get the followin graph (for two different axis steps h = [0.2, 0.025]):
What I want is to add another function to the same graph (true function f) and to add a description of the line in the above right section saying "true function f".
say that f = cos(2x)
how can I do this?
Walter Roberson on 28 Nov 2020
f = @(x) cos(2*x);
plot(X_in.', U.', X_in.', f(X_in.'));
legend_strs = [compose('Approximate f with h=%.2d', h), "true function f"];
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