Hello,

i have to solve systems of linear algebraic equations (nodal equations from 
circuit theory).
I tried examples witch 7 unknowns and a lot of symbolic parameters: i 
obtain 7 equations in the 7 unknowns (and with the symbolic parameters).
Then i solve for the 7 unknowns: sympy solve simply runs "out of time".
For 3 unknowns in 3 equations the results are computed after a few minutes. 
For 7 unknowns in 7 equations i had to stop the computation.

Sage math does it in much lesser time.

I have tried manual=True simplify=False and other options and i always have 
the same performance problem.

Can someone help ?

Thanks

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