evaluate(DiffOp,AbstractPoint) -- evaluate coefficients of a differential operator

Synopsis

• Function: evaluate

• Usage:

  evaluate(D, p)

• Inputs:
  • D, a differential operator,
  • p, a point, or a one-row matrix
• Outputs:
  • a differential operator,

Description

i1 : R = QQ[x,y];

i2 : S = diffOpRing R;

i3 : D = diffOp(x*dx+y*dy^3)

o3 = | ydy^3+xdx |

                1
o3 : DiffOp in S

i4 : evaluate(D, point{{1,2}})

o4 = | 2dy^3+dx |

                1
o4 : DiffOp in S