CASA Function: independentVariables

Computes a set of independent variables.

Calling Sequence:

• s := independentVariables(A)

Parameters:

A : algset("impl")

• An algebraic set in implicit representation.

Result:

s : set(name)

• a maximal set of independent variables of the algebraic set

Description:

• The function computes a maximal set of independent variables for an algebraic set in implicit form. The dimension of the algebraic set is exactly the number of independent variables.

Examples:

> a := mkImplAlgSet([x^2-3*x*y^2-7*y^3, x^2-z^2-1],[x,y,z]);

> independentVariables(a);

See Also: