On Friday, 13 April 2012 21:59:55 UTC+8, Nathann Cohen wrote:
Hello everybody !!!
I would like to solve a set of equations with a very easy shape. My
equations are defined on variables p1_x, p1_y, p2_x, p2_y, ..., and I
would like to obtain values for them satisfying constraints like :
Hello !!!
Do you mean to say that you have complex numbers p_j and your inequalities
are of the form
|p_j-p_k|=C and |p_j-p_k|=D, and that you also have
some equations on Re(p_j) and Im(p_j) ?
Oh, well, if you have something like that it would of course solve my
problem too :-)
I guess what the OP means is that he wants a set of basis vectors with
non-negative entries. For instance in the above example, adding the third
row to the first will give such a matrix.
I don't know if there is any ready made method for doing that. An easy way
would be to get the rref (the
For the past week to 10 days the server has been very very slow to
resolve. Sage is almost unusable right now.
Having the problem both at work and home.Is the problem on my end?
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On Wednesday, April 25, 2012 5:11:46 PM UTC+2, gmark1953 wrote:
For the past week to 10 days the server has been very very slow to
resolve. Sage is almost unusable right now.
On the server, there are too many users active and it doesn't scale well
enough. I encourage you to install Sage
Finding occasional inconsistencies when using matrices with cyclotomic
entries, though works well most of the time...
sage: s=CyclotomicField(24,'s').gen()
sage: (8*s^6-1)^10
-1098715216*s^6 - 372960063
sage: xb=matrix(1,1,[8*s^6-1])
sage: xb^10
[1036922553*s^6 -
Harald,
Thanks for taking the time to reply and thank you for devoting your time to
the Sage board. I have installed it locally and it runs fine. What I
really love though is having a cloud based tool that I can work on from
anywhere. My normal tools are matlab, octave and scilab but I have
