CASA Function: subresultantChain
Compute the subresultant chain of two multivariate polynomials.
Calling Sequence:
- sc := subresultantChain(P,Q,x)
Parameters:
- P : polynon
-
- Q : polynom
-
- x : name
- the variable over which the subresultants should be computed
Result:
- sc : list(polynom)
- A descending chain of all subresultants (including discrete ones) of the two polynomials P and Q.
Description:
- This procedure computes the chain of subresultants of two given multivariate polynomials over a given variable. The list it returns contains all subresultants, both regular and discrete ones.
Examples:
> subresultantChain(x^5-2*x^3-5*x^2+x^3-2*x-5,x^2+1,x);
> subresultantChain(x^5-2*x^3-5*x^2+x^3-2*x-5,x^4+1,x);
See Also:
[CASA]
[mvresultant]