Shorter way of using define?


On Fri, 19 Jun 2009, Stefan Meyer wrote:

< 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);
 
See this thread:
http://www.math.utexas.edu/pipermail/maxima/2009/017562.html

Note that the Maxima email archive is searchable.

Leo

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