Why doesn't this matlab code work?!

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Aryo Aryanapour
Aryo Aryanapour 2021-4-19
评论： Aryo Aryanapour 2021-4-20
>> x = -5:1:5;
>> y = exp(x)*(x.^3-5*x.^2+5*x+1);
Error using *
Incorrect dimensions for matrix multiplication. Check that the number of columns in the first matrix
matches the number of rows in the second matrix. To perform elementwise multiplication, use '.*'.
Related documentation
>> plot(x,y)
Unrecognized function or variable 'y'.
thank you

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采纳的回答

the cyclist
the cyclist 2021-4-20
You missed a spot where you needed an element-wise operation, multiplying the exp(x) by the other term:
x = -5:1:5;
y = exp(x).*(x.^3-5*x.^2+5*x+1);

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