raysPPn -- The rays of the standard fan of projective space or weighted projective space.

Synopsis

Usage:

raysPPn(n)
Inputs:
- n, an integer, positive
- L, a list, with at least 2 elements and first entry 1
Outputs:
- a matrix,

Description

Returns a matrix which has in its rows the rays of the standard fan of projective space of dimension n or weighted projective space with the weights L.

i1 : raysPPn(2)

o1 = | -1 -1 |
     | 1  0  |
     | 0  1  |

              3       2
o1 : Matrix ZZ  <-- ZZ

Ways to use raysPPn :

raysPPn(List)
raysPPn(ZZ)

For the programmer

The object raysPPn is a method function.

raysPPn -- The rays of the standard fan of projective space or weighted projective space.

Synopsis

Description

See also

Ways to use raysPPn :

For the programmer