Hi Francois,
On Sat, Sep 26, 2009 at 2:35 AM, Francois Maltey wrote:
> 1/ I see you have already patched the exp(a)^b problem. I use sage-4.1.1
> and run sage -upgrade, but I don't get any update. Of corse I can wait
> the next sage, but is there a way to get a new-and-unstable sage ?
See t
On Sep 25, 12:35 pm, Francois Maltey wrote:
> Hi Burcin,
>
> Many thanks for theses details about sage. I try to understand what you
> prefer, and why.
>
> > The main reason I left this simplification "exp(a)^2 to exp(2*a)" while
> > fixing #6948 was that MMA does things this way.
>
> All righ
Hi Burcin,
Many thanks for theses details about sage. I try to understand what you
prefer, and why.
> The main reason I left this simplification "exp(a)^2 to exp(2*a)" while
> fixing #6948 was that MMA does things this way.
All right : MMA is good.
> Another consideration was that before pe
Hi Francois,
On Mon, 21 Sep 2009 21:22:39 +0200
Francois Maltey wrote:
> Concretely
> ??? I'll don't see how to operate over exp(2x) => exp(x)^2.
> ??? Is there a hold (or freeze) function in sage which remains
> exp(a)^2. Also look at integrate (exp(2*x)/(exp(3*x)+1), x). The
> changevar is y
About expand and combine
Let me enumerate some transforms used in mathematic calculus.
I describe what I understand and insert questions with ???.
I only details theses methods because they are very similar.
4 are called "expand" and 4 are called "combine".
Both are used in mathematics.
e^(2x
Hi Francois,
On Mon, 14 Sep 2009 13:55:33 +0200
Francois Maltey wrote:
>
> Hello,
>
> I don't find usual trigonometric transform in sage :
>
> expand (sin (2*x)) == 2*sin(x)*cos(x)
sage: t = sin (2*x)
sage: t.tri
t.trig_expandt.trig_simplify
sage: t.trig_expand()
2*sin(x)*cos(x)
> co
