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##

Functions

So far
we have played with various expressions in Maxima, Maple
and in Mathematica, discovering in the process that the three
are pretty similar, even if there are subtle differences between
them - with Maxima and Maple being perhaps closer to each other
than to Mathematica, not in the least because of a common heritage,
that of Macsyma.

We have also discovered how we can assign numerical or symbolic
expressions to variables. Now we make another step and introduce
a concept of a *function*.

*Zdzislaw Meglicki*

*2001-02-26*