[Maxima] assigning a value to x in diff(f(x),x)
nijso at hotmail.com
Sun Apr 8 04:54:56 CDT 2012
Thanks! This looks promising.
is at(F(x,y),[x=0,y=0]) the same as F(0,0) when no derivatives are involved?
I still need to know which variables, if any, are involved in differential operators.
I now declare dependencies to deal with this (using atvalue, assuming all dependencies are involved in differentiation), but if somebody knows a more elegant method of finding the free dependent variables in an expression, please let me know.
Date: Fri, 6 Apr 2012 15:13:02 -0700
From: fateman at eecs.berkeley.edu
To: nijso at hotmail.com
Subject: Re: [Maxima] assigning a value to x in diff(f(x),x)
try looking at "at"
On 4/6/2012 1:59 PM, nijso beishuizen wrote:
I have written a function separable(expr,x,y) that returns
[f(x),g(y)] if expr is separable, and false otherwise.
However, I have a problem with the exotic case where expr
contains the derivative of an unknown function f(x), i.e. when
The problem is that the algorithm works by assigning a value to
Is there a way to make 'something like this' work:
which should then result in the equivalent of f '(0).
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