Shorter way of using define?

• Subject: Shorter way of using define?
• From: Stefan Meyer
• Date: Fri, 19 Jun 2009 22:46:22 +0200

Hi,

I'm new to Maxima and I wonder if I can write the
define statement in a shorter way.

This version works:

(%i1) f(x):=x^2;
(%o1) f(x):=x^2
(%i3) define(f1(x),diff(f(x),x,1));
(%o3) f1(x):=2*x
(%i4) f1(1);
(%o4) 2

Instead of (%i3) I tried the following which caused
an error:

(%i10) g(x):=diff(f(x),x,1);
(%o10) g(x):=diff(f(x),x,1)
(%i11) g(1);
diff: second argument must be a variable; found 1
#0: g(x=1)
 -- an error.  To debug this try debugmode(true);

Is there a shorter way of defining a new function?


Thank you

Stefan
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