Polynomial as product of two vectors

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Aleem Andrew
Aleem Andrew 2020-11-11
评论： Aleem Andrew 2020-11-11
I am trying to display a polynomial as the product of two vectors.
a = [1 2 3 4 ];
syms x
f = [x,x^3,x,x^3]';
a.*f
The output should be x + 2x^3 + 3x +4x^3 but instead a number of vectors are output and f(x) is output as conj(f(x)). Writing instead a*f results in the correct output but f(x) is still displayed as conj(f(x)). Can someone explain how this issue can be fixed?

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采纳的回答

Bruno Luong
Bruno Luong 2020-11-11
Try this
a = [1 2 3 4 ];
syms x
f = [x,x^3,x,x^3].';
a*f

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