I want to build a function which takes two optional arguements. If Y
and Z are note provided, I would like to make them equal to 1. How do
I state this within the function? They way I have it below will force
them to 1 regardless.

Private Function New(X As Double, Option Y As Double, Optional Z As
Double)

'if Y and Z are not provided then force them to value of 1
Y = 1.0
Z = 1.0

New = X*Y*Z


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