how to multipy two polynomial expression?

2011 11 3

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45 次查看（30 天）

1 个投票

hi i have to multiply two polynomial equations example:a=1+x+x^2 b=1+X output should be 1+2x+2x^2+x^3 plz do reply...

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Andrei Bobrov 2011-11-3

15 个投票

syms x
a=1+x+x^2
b=1+x
out = expand(a*b)

coeffa = [1 1 1];
coeffb = [1 1];
out = conv(coeffa,coeffb);

it's helpful sir. Thank you

Foysal Ahmmed 2021-8-20

Thank you very much Andrei Bovrov.

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