CASA Function: genus

Computes the genus of an algebraic set defining a plane curve.

Calling Sequence:

• g := genus(A)

Parameters:

A : planecurve

• A plane algebraic curve.

Result:

g : integer

• The genus of the planecurve.

Description:

• This procedure computes the genus g of an algebraic curve in implicit representation. An entry 'genus' = g is added to the list of attributes.
• If the second argument ntree is used, it will be assigned the neighboring tree of the algebraic curve.

Examples:

> a:=mkImplAlgSet([y^3+y^2-x^2],[x,y]);

> genus(a);

See Also: