Creating a matrix for a function

% create matrix A for
%  f = c₀ +  c₁sin(t)  +  c₂cos(t)  +  c₃sin(2t)  +  c₄cos(2t)
%A = 

Tis is the question that I should complete.


f (t) = a +b t +c t ^2 
A = [t .^0 t.^1 t .^2] 

And this is the example that my proffessor gave me. But when I solve the question according to the exmaple it gives this error '' Check matrix A
The submission must contain a variable named A. '' Can anyone help me with that? Thanks for your time.

[KSSV]

Show us the full example, which threw this error.

Answer 1

[Torsten]

A = [ones(numel(t),1),sin(t),cos(t),sin(2*t),cos(2*t)]