Derivative as a function

Nikos Apostolakis writes:

> is there a way to define a function to
> be the derivative of another function?

Try this -- two single quote marks:

 (%i1) f(x) := x^2$
 
 (%i2) df(x) := ''(diff(f(x), x));

 (%o2)                            df(x) := 2 x

 (%i3) df(7);

 (%o3)                                 14

Note that df(x) := ''diff(f(x),x)$ doesn't work.

Larry Wall would love Maxima -- "There's more than
one way to do it."

Hope this helps,
Robert Dodier




		
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