creating polynomial to matix

hello, I am new to matlab. I would like to change polynomial z=c1+c2*x+c3*x^2+c4*y+c5*y^2+c6*x*y+c7*x*y^2+c8*x*y+c9*x^2*y*2

to matrix. I have a problem with matrix A to get sum of x,y into A.

for i=1:9

syms x,y

A(i,1)=1;

.

.

A(i,9)=x(i)^2*y(i)^2;

end

Thank you for your time.

Answer 1

[KSSV]

Read about poly2sym

https://www.mathworks.com/help/symbolic/poly2sym.html

If this is not you are expecting..read about polyval.

https://www.mathworks.com/help/matlab/ref/polyval.html

[Thin Rupar Win]

Thank you for your answer, KSSV. But, this is not my expected answer. I would like to build the matrix A with polynomial values ( x and y).