Perhaps working in the symbolic ring is causing something you don't
like. In David's example above, you might want to convert things to
CDF, which gives:
sage: a = CDF(1 + 3*I)
sage: z = log(a)
sage: z
1.1512925465 + 1.2490457724*I
...instead of
sage: a = 1 + 3*I
sage: z = log(a)
sage: z
log(3*
On Mon, Jul 6, 2009 at 12:25 PM, mac8090 wrote:
>
> when I try to take logarithms of a complex number sage version 3.5
> doesn't like it. How do I find/use a multiplication preserving
> embedding to make it work?
I don't understand the question. In the latest version you get this:
sage: a = 1 +
