CASA Function: SubsPolynomial

Evaluate a polynomial at a point in Root-of Form.

Calling Sequence:

• a := SubsPolynomial(point p,F)

Parameters:

point : list

• point where to evaluate the polynomial

F : casa/finite/field

• The finite field of the coefficients of p.

Result:

a : root-of expression

• The value of p at point.

Description:

• Evaluates a polynomial at a point.

Examples:

> F8:= finiteField(8);

> P := InPolynomial(alpha^2*x+alpha,F8);

> r := PolynomialRoots(P,F8);

> p := NormalPolynomial(P,F8);

> a:= SubsPolynomial([alpha,alpha^2],p,F8);

See Also: