# stellarSubdivision -- computes the stellar subdivision of the fan by a ray

## Synopsis

• Usage:
F1 = stellarSubdivision(F,r)
• Inputs:
• F, an instance of the type Fan
• r, , with one column in the ambient space of the fan
• Outputs:
• F1, an instance of the type Fan

## Description

This function computes the stellar subdivision of F by inserting the ray given by r.

 i1 : F = normalFan hypercube 2 o1 = {ambient dimension => 2 } number of generating cones => 4 number of rays => 4 top dimension of the cones => 2 o1 : Fan i2 : r = matrix {{1},{1}} o2 = | 1 | | 1 | 2 1 o2 : Matrix ZZ <--- ZZ i3 : F1 = stellarSubdivision(F,r) o3 = {ambient dimension => 2 } number of generating cones => 5 number of rays => 5 top dimension of the cones => 2 o3 : Fan

## Ways to use stellarSubdivision :

• "stellarSubdivision(Fan,Matrix)"

## For the programmer

The object stellarSubdivision is .