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Overloading functions

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  Overloading functions Sam Takoy <sam.takoy@yahoo.com> - 2011-05-21 10:50 +0000

#2577 — Overloading functions

Hi,

In the following code

MyOperator[g_][x_, y_] = 4 + Derivative[1, 0][g][x, y];

f[x_, y_] = x + y;
f[x_, y_, z_] = 2 x + 2 y + 2 z;

MyOperator[f][x, y]


how does Mathematica know which f to send to MyOperator. Can someone 
outline the formal decision tree that Mathematica follows?

Thanks!

Sam

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