[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Axiom-math] where is the complex module function ?
From: |
Martin Rubey |
Subject: |
Re: [Axiom-math] where is the complex module function ? |
Date: |
Tue, 12 Jul 2005 10:58:23 +0200 |
Dear François,
could you please report this as an issue.
For a RealNumberSystem R, abs$Complex R computes what you want. Otherwise,
there is an operation norm(x)$Complex R, which computes x*conjugate(x).
I think that RealNumberSystem is too strong a requirement for abs, the
corresponding code in gaussian.spad reads:
if R has RealNumberSystem then
abs(x:%):% == (sqrt norm x)::%
It seems that the author of COMPLEX was particularly fond of RealNumberSystem
:-), see the bug in argument...
Martin
Francois Maltey writes:
> Hello
>
> I find the complex argument function :
> argument (3+4*%i) computes atan (4/3).
>
> But where is the module or abs complex function :
> how can I get 5 from the complex 3+4*%i ?
>
> Thanks a lot !
>
> François
>
>
> _______________________________________________
> Axiom-math mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/axiom-math
>
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- Re: [Axiom-math] where is the complex module function ?,
Martin Rubey <=