matrix(RationalMap) -- the matrix associated to a rational map

Function: matrix
Usage:

matrix Phi
Inputs:
- Phi, a rational map
Optional inputs:
- Degree => ..., default value null,
Outputs:
- a matrix, the matrix associated to the ring map defining the rational map Phi

Description

This is equivalent to matrix map Phi. Moreover, the command matrix Phi is equivalent to matrix(0,Phi), and more generally the command matrix(i,Phi) returns the matrix of the i-th representative of Phi.

Ways to use this method:

matrix(RationalMap) -- the matrix associated to a rational map
matrix(ZZ,RationalMap)

The source of this document is in Cremona/documentation.m2:729:0.

matrix(RationalMap) -- the matrix associated to a rational map

Description

See also

Ways to use this method: