# evaluate(DiffOp,Point) -- evaluate coefficients of a differential operator

## Synopsis

• Function: evaluate
• Usage:
evaluate(D, p)
• Inputs:
• Outputs:

## Description

Evaluates the polynomial coefficients of a differential operator at a point. This can be used to obtain a set of specialized Noetherian operators.

 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