Divisor -- 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.