Let A be a matrix of order (24,6). How one can find a matrix B in Sage of
order (6,24) such that
AB=Identity matrix?
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Thank you very much.
On 2 December 2010 07:34, Marshall Hampton wrote:
> R. = PolynomialRing(QQ,9)
> ideal = R.ideal([u-d_p*d_q,v-d_p-d_q,w-d_q*k-d_p*l,x-k-l,y-k*l])
> list(ideal.elimination_ideal([d_p,d_q,k,l]).gens())
>
> [x^2*u + y*v^2 - x*v*w - 4*y*u + w^2]
>
> -M. Hampton
>
> On Dec 1, 8:04
On Dec 1, 5:31 pm, Alex Raichev wrote:
> Hi all:
>
> I think i found a bug with simplify_full().
>
> Alex
Thanks, that's definitely a problem. This is already
http://trac.sagemath.org/sage_trac/ticket/9240, in fact, where the
problem is nicely diagnosed and a patch is provided! #9248 is
relat
On Dec 1, 8:35 pm, BFJ wrote:
> The part of the reference manual under Pi Axis is relevant:
>
> Pi Axis:
>
> sage: g1 = plot(sin(x), 0, 2*pi)
> sage: g2 = plot(cos(x), 0, 2*pi, linestyle = "--")
> sage: (g1+g2).show(ticks=pi/6, tick_formatter=pi) # show their sum,
> nicely formatted
Yes, this
R. = PolynomialRing(QQ,9)
ideal = R.ideal([u-d_p*d_q,v-d_p-d_q,w-d_q*k-d_p*l,x-k-l,y-k*l])
list(ideal.elimination_ideal([d_p,d_q,k,l]).gens())
[x^2*u + y*v^2 - x*v*w - 4*y*u + w^2]
-M. Hampton
On Dec 1, 8:04 am, Santanu Sarkar
wrote:
> Suppose,
> u=d_p*d_q
> v=d_p+d_q
> w=d_q*k+d_p*l
> x=k+l
>
The part of the reference manual under Pi Axis is relevant:
Pi Axis:
sage: g1 = plot(sin(x), 0, 2*pi)
sage: g2 = plot(cos(x), 0, 2*pi, linestyle = "--")
sage: (g1+g2).show(ticks=pi/6, tick_formatter=pi) # show their sum,
nicely formatted
On Nov 30, 3:36 pm, David Joyner wrote:
> Does the pag
Hi all:
I think i found a bug with simplify_full().
Alex
--
| Sage Version 4.6, Release Date: 2010-10-30 |
| Type notebook() for the GUI, and license() for information.|
--
Suppose,
u=d_p*d_q
v=d_p+d_q
w=d_q*k+d_p*l
x=k+l
y=k*l
where dp,dq,k,l are variables.
Then, how one can find the relation v*w*x= (v^2 - 2*u)*y + w^2 - 2*u*y +
u*x^2 using Groebner Basis
in sage?
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On Nov 27, 2:15 pm, KvS wrote:
> Dear all,
>
> just a quick question/remark, today I was working (plotting etc.) with
> some quantities that involve (upper) incomplete gamma functions. Some
> operations took very long, as it turned out due to the incomplete
> gamma function evaluating very slowly
