# RingElement * DiffOp -- scaling of differential operators

## Synopsis

• Operator: *
• Usage:
c*D
• Inputs:
• c, , in the same ring as D, or a Number
• Outputs:

## Description

Multiplies every coefficient of D by c

 i1 : R = QQ[x,y]; i2 : D = diffOp{x => x^2+ y, y^2 => 1} 2 2 o2 = dy + (x + y)dx o2 : DiffOp i3 : y*D 2 2 2 o3 = y*dy + (x y + y )dx o3 : DiffOp i4 : 2*D 2 2 o4 = 2*dy + (2x + 2y)dx o4 : DiffOp