Why doesn't this matlab code work?!
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>> 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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the cyclist
2021 年 4 月 20 日
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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