Question: Defining custom operator for partial differentiation


Suppose we have a function "f(x,y,z), "can we build a code such that for operator defined as

"Delta[]=((∂)^3)/(∂y ∂x^2)+((∂)^(2))/(∂y ∂x^)+((∂)^3)/(∂y ∂z^2)+((∂)^(2))/( ∂x^2)+((∂)^3)/(∂z ∂x^2)"

Such that

Delta*f(x, y, z)returns f[yxx]+f[yx]+f[yzz]+f[xx]+f[zxx]

where subscripts denote partial derivatives.


Download operator.mw

Regards

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