Create a polynomial from a list of coefficients

Asked Jan 10 '19 at 10:34

Active Jan 10 '19 at 10:36

Viewed 737 times

First I have to extract coefficients from a polynomial.Then I have to make a polynomial from by given list and show that they are identical. So I tried like this:

f[x_] := 3 x^3 - 7 x^2 + 6; 

coefficientlist = Table[Coefficient[f[x], x, i], {i, 0, 3}];(*It also can be do by CoefficientList[]*) 

poly = x^Range[0, 3]*coefficientlist // TraditionalForm

But here I got problem to create the polynomial from my coefficientlist. Can Anyone help me to figure out this. Any hints or solution will be appreciated.
Thanks in advance.

edited Jan 10 '19 at 10:36

Kuba

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asked Jan 10 '19 at 10:34

emonhossain

2

Take a look at ref / CoefficientList then Properties and relations 3rd example. – Kuba Jan 10 '19 at 10:40
1

Yes.i got it.Thanks @kuba – emonhossain Jan 10 '19 at 10:53

Create a polynomial from a list of coefficients

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