[GiNaC-list] substitute for step ( wild ( ) ) function derivative
jros at unavarra.es
Wed Sep 9 21:49:02 CEST 2009
If I derive step I obtain D(step). I want to substitute for
D(step)--> 0 to get a particular behavior.
What should I do?
(e.subs(D(step)(wild()) == 0) can't be understand
By the way I'm assuming that the step function is the Heaviside function
( step(x)=0 if x<0; 1 otherwise I'm assuming a real argument) .
Thank you in advance.
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