[sage-support] Re: Solver doesn't find a solution for nonlinear problem

2013-05-23 Thread cidex
I kind of assumed that this was numerical, thanks! On Thursday, May 23, 2013 10:40:06 PM UTC+2, Harald Schilly wrote: > > Hi > > You are using a symbolic solver for a rather large system of equations. > Maybe it's not really possible to solve this in a sane way and therefore > you don't get an

[sage-support] Solver doesn't find a solution for nonlinear problem

2013-05-22 Thread cidex
Hi, I use the following code in sage, which internally calls Maxima to solve the problem. The solver never returns with a solution, even if i change the values randomly. I tried to enter the same code into MATLAB and it also doesn't return with a solution. What is the Problem? L1=8; L2=6; L3=4

[sage-support] Re: Problem unsing Matrix.invert() / Matrix.inverse()

2009-02-21 Thread cidex
Thank you, i've got it working now! --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups

[sage-support] Problem unsing Matrix.invert() / Matrix.inverse()

2009-02-21 Thread cidex
I have tracked down an error in one of my SAGE scripts down to following behavior of SAGE: The following code does what you'd expect: M= Matrix([[1,0,0],[0,1,0],[0,0,1]]); M=M*91/100; #the line we modify later print M; N= M.inverse(); #or: N= M^(-1) print N; print N*M #result, should be neutral