Hrm. They seem to work now. Odd. Before I was just getting big parens () with nothing in them. Possibly an issue on my side.
On Fri, Aug 31, 2012 at 9:57 AM, Aaron Meurer <[email protected]> wrote: > Can you give a specific example? What printer are you using? They worked > fine for me. > > Aaron Meurer > > On Aug 31, 2012, at 7:02 AM, Matthew Rocklin <[email protected]> wrote: > > Whoops! Probably my mistake. > > Also, this might just be my system but the SymPy live shell doesn't > display matrices properly in the pop-up window in the docs. It still works > fine at live.sympy.org. > > On Thu, Aug 30, 2012 at 7:02 PM, Aaron Meurer <[email protected]> wrote: > >> On Thu, Aug 30, 2012 at 6:00 PM, Ondřej Čertík <[email protected]> >> wrote: >> > On Thu, Aug 30, 2012 at 4:50 PM, Aaron Meurer <[email protected]> >> wrote: >> >> Cramer's method is useful for instructive purposes, and also for >> >> theory, but practically, it is highly inefficient. The method used by >> >> SymPy is Gaussian elimination, which is the most direct way to solve a >> >> system of linear equations. >> >> >> >> Of course, if you want to use SymPy to use Cramer's method, that is >> >> possible. I'm not sure what the best method to get the matrices with >> >> columns replaced is. Perhaps we should add some method like >> >> col_replace (and row_replace) to Matrix, which would make this easier. >> > >> > SymPy can use Cramer's method to do a matrix inverse, see the >> > docstring of Matrix.inv(). >> > >> > This reminds me that for some reason Matrix class is not exposed in the >> docs: >> > >> > >> http://docs.sympy.org/dev/modules/matrices.html#sympy.matrices.matrices.Matrix >> > >> > there is only one line "alias of MutableMatrix". >> > >> > Ondrej >> >> Ah, apparently whenever Matrix was renamed to MutableMatrix, no one >> updated the docs. I'll put a commit fixing this in PR 1507 (the >> release PR). >> >> Aaron Meurer >> >> -- >> You received this message because you are subscribed to the Google Groups >> "sympy" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/sympy?hl=en. >> >> > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
