7.2.4.1 poly declarations (plural)

Syntax:

poly name = poly_expression ;

Purpose:

defines a polynomial.

Default:

0

Example:

ring r = 32003,(x,y,z),dp; def R=nc_algebra(-1,1); setring R; // ring of some differential-like operators R; ==> // characteristic : 32003 ==> // number of vars : 3 ==> // block 1 : ordering dp ==> // : names x y z ==> // block 2 : ordering C ==> // noncommutative relations: ==> // yx=-xy+1 ==> // zx=-xz+1 ==> // zy=-yz+1 yx; // not correct input ==> xy y*x; // correct input ==> -xy+1 poly s1 = x3y2+151x5y+186xy6+169y9; poly s2 = 1*x^2*y^2*z^2+3z8; poly s3 = 5/4x4y2+4/5*x*y^5+2x2y2z3+y7+11x10; int a,b,c,t=37,5,4,1; poly f=3*x^a+x*y^(b+c)+t*x^a*y^b*z^c; f; ==> x37y5z4+3x37+xy9 short = 0; f; ==> x^37*y^5*z^4+3*x^37+x*y^9