[13200] in Athena Bugs
decmips 7.7G: Maple
daemon@ATHENA.MIT.EDU (mishache@MIT.EDU)
Fri Feb 10 16:35:36 1995
From: mishache@MIT.EDU
To: bugs@MIT.EDU
Date: Fri, 10 Feb 1995 16:35:26 EST
System name: milanese
Type and version: KN02ca 7.7G (1 update(s) to same version)
Display type: rlogin from SUN Sparc 2
What were you trying to do?
y:=simplify(1/2*(int(int(Dirac(eta)*f(tau),eta=x-(t-tau)..x+(t-tau)),tau=0..t)));
aa:=(diff(y,t$2)-diff(y,x$2));
What's wrong:
It gives aa:=0.
What should have happened:
It should have given aa=Dirac(x)*f(t).
If one puts g(eta,tau) instead of Dirac(eta)*f(tau) then the answer is the correct one aa:=g(x,t).
That is, Maple doesn't handle Dirac function properly.
Please describe any relevant documentation references:
