CASA Function: mkParaAlgSet

Creates an algebraic set in parametric representation

Calling Sequence:

• A := mkParaAlgSet(repr,v)
• A := mkParaAlgSet(repr,v,attr)

Parameters:

repr : list(ratpoly(CasaCoeffType,v))

• list of rational functions

v : list(name)

• internal variables

attr : list(equation)

• initial attributes

Result:

A : algset("para")

• An algebraic set in parametric representation.

Description:

• The function creates an algebraic set in parametric representation. It takes as its first argument a list of rational functions which parametrize the algebraic set, whose common zeros define the algebraic set.
• Its second argument is the list of variables used as indeterminates in the algebraic set.
• The third, optional argument may be used to specify initial attributes of the algebraic set.

Examples:

> A := mkParaAlgSet([s^2/(s^2-1),(s^2-1)/(s^2+1)],[s]);

See Also: