exponents(SparseResultant) -- get the matrices of exponents

Synopsis

• Function: exponents

• Usage:

  exponents R

• Inputs:
  • R, an instance of the type SparseResultant
• Outputs:
  • the matrices of exponents from which the sparse resultant R is created

Description

i1 : R = denseResultant(2,2,1);

o1 : SparseResultant (sparse mixed resultant associated to {| 0 0 0 1 1 2 |, | 0 0 0 1 1 2 |, | 0 0 1 |})
                                                            | 0 1 2 0 1 0 |  | 0 1 2 0 1 0 |  | 0 1 0 |

i2 : M = exponents R

o2 = {| 0 0 0 1 1 2 |, | 0 0 0 1 1 2 |, | 0 0 1 |}
      | 0 1 2 0 1 0 |  | 0 1 2 0 1 0 |  | 0 1 0 |

o2 : List

i3 : assert(R === sparseResultant M)

See also

• exponentsMatrix -- exponents in one or more polynomials