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# what is "Error using ==> mtimes Inner matrix dimensions must agree."

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Mustafa Ahmed on 17 Nov 2020
Closed: MATLAB Answer Bot on 20 Aug 2021
The question says write a matlab code to draw praph of F(t) in the interval 0 <= t <= 4, increase by 0.05

### Answers (2)

Ameer Hamza on 17 Nov 2020
Since 't' is a vector, use element-wise operators: https://www.mathworks.com/help/matlab/matlab_prog/array-vs-matrix-operations.html. Replace / with ./ and * with .*
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Mustafa Ahmed on 17 Nov 2020
Edited: Mustafa Ahmed on 17 Nov 2020
thank you

Andrei Bobrov on 17 Nov 2020
t = 0:0.05:4;
y = t.^2./ (t+1) + 3*exp(-4*t).*cos(5*t) - 2*exp(-3*t)./sin(2*t);
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Mustafa Ahmed on 17 Nov 2020
thanks

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