Problem inverting complex matrix

[jesuscf]

(12-22-2019 08:54 AM)parisse Wrote:  

(12-21-2019 08:43 PM)jesuscf Wrote:  approx(inv(exact(...))) takes over 15 seconds to produce the result.

This is expected since computations are done with rationals.
After more tracing with the numeric algorithm, I discovered that it failed because checking of non zero pivot failed: inv(M1) fails while inv(1000*M1) works. This should now be fixed in the source code.

Thank you Parisse! I also want to clarify that to get the correct result, inv(1000*M1) needs to be multiplied by 1000: inv(1000*M1)*1000.