I want to input the following function so I can find the Fourier Transform of it:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]tri(\frac{t}{2\pi })Cos(2\pi (\frac{5}{\pi })t)[/tex]

I couldn't find a simple way of doing a tri function so this is what I inputted in matlab:

[tex]a(t_{1}) = (\frac{t_{1}}{\pi }+1)Cos(2\pi (\frac{5}{\pi })t_{1})[/tex] where -π < t1 < 0

[tex]b(t_{2}) = (-\frac{t_{2}}{\pi }+1)Cos(2\pi (\frac{5}{\pi })t_{2})[/tex] where 0 < t2 < π

[tex]g(t) = a(t_{1}) + b(t_{2})[/tex]

Here is what I typed into matlab:

>> t1 = -pi:0.01:0;

>> t2 = 0:0.01:pi;

>> g = ((t1/pi) + 1)*cos(2*pi*(5/pi)*t1) + ((-t2/pi) + 1)*cos(2*pi*(5/pi)*t2);

But I get this error:

??? Error using ==> mtimes

Inner matrix dimensions must agree.

I looked in the workspace and t1 and t2 both have the same dimensions of 1x315 (just different min anad max values).

Thanks for your help.

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# Matlab Question

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