On Mon, 2010-06-28 at 15:25 -0400, Jeffrey Hankins wrote:
> Hey, there's something I can't do in Maxima. I cannot differentiate
> things like f(g(t),h(t)) where f is a generic function and g and h are
> specific functions. If the depends tag is used, it will differentiate
> f with no arguments, but it will not differentiate something like
> f(t^2+1,t^3) with respect to t. Is there anything I can do?
You'll have to be more specific (show us the exact Maxima lines that
lead you to conclude that it doesn't work).
For instance, what you describe works well in this sense:
(%i1) f(x,y):=x+2*y$
(%i2) diff(f(t^2+1,t^3), t);
(%o2) 6*t^2 + 2*t
which is the expected result.
Regards,
Jaime