minimal maxima function def to use mfuncall?



On Apr. 17, 2012, I wrote:
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What is the minimum amount of preparation one
must do in defining a maxima function using :=
to be able to use it with mfuncall?
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dumb mistake: left out dollar sign ($)
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(%i1) f(x):=x^2$
(%i2) :lisp (mfuncall '$f  '3)
9
(%i2) 
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sorry for the noise

Ted