MathGroup Archive 2007

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Re: Functions with data hidden in them

Thank you to everyone who replied. Szabolcs Horv=E1t sent a simple solution

The data "5" in "power[5]" is hidden inside the "f[]" function:

In[1]:= power[n_][x_] := x^n

In[2]:= Format[power[_]] := "--power--"

In[3]:= f = power[5]
Out[3]= "--power--"

In[4]:= f[2]
Out[4]= 32

DrMajorBob posted a similar solution.

Hannes Kessler posted a method that avoids recalculation of intermediate

Mark Holt posted a trick with the Button[] function.

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