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Macaulay2 website
SpaceCurves
::
Divisor
Divisor  type of HashTable
Description
Divisor
is a type of
HashTable
that specifies a divisor class on a surface. The keys are
Coordinate
and
Surface
.
See also
Curve
 type of HashTable
Methods that use an object of class Divisor :
"curve(Divisor)"
 see
curve
 generates a random curve
degree(Divisor)
 computes the degree of a Divisor
Divisor * Divisor
 intersection number of two Divisors
Divisor + Divisor
 sum of two Divisors
Divisor  Divisor
 difference of two Divisors
genus(Divisor)
 computes the genus of a Divisor
net(Divisor)
 displays the coordinates of the Divisor
"surface(Divisor)"
 see
surface
 the surface key of a Divisor or a Curve
ZZ * Divisor
 multiply a Divisor by an integer
For the programmer
The object
Divisor
is
a
type
, with ancestor classes
HashTable
<
Thing
.