diff ignores some rules? Re: [Maxima] handling tellsimp'ed rules
- Subject: diff ignores some rules? Re: [Maxima] handling tellsimp'ed rules
- From: Andrei Zorine
- Date: Sun, 23 May 2004 18:55:55 +0400
Another problem, I'd expect to see 0 here:
(C1) block([sd,t,y ],
matchdeclare([sd,t,y],true),
print(tellsimp('diff(II(sd,t),t),sd/ID(t))),
print(tellsimp('diff(II(sd,t),t,2),0)),
print(tellsimp('diff(II(sd,t),sd),0)))$
[DERIVATIVERULE6, SIMPDERIV]
[DERIVATIVERULE7, DERIVATIVERULE6, SIMPDERIV]
[DERIVATIVERULE8, DERIVATIVERULE7, DERIVATIVERULE6, SIMPDERIV]
(C2) diff(a*II(sd,t),t,2);
d
a sd (-- (ID(t)))
dt
(D2) - -----------------
2
ID (t)
--
Andrei Zorine