I met such such command for the 89 or the TI series...(adsbygoogle = window.adsbygoogle || []).push({});

ref=gaussian elemination...

rref=refined version of Gaussian...

I wonder who this thing works... Because for the basic circuit problems with like 7 currents... This rref is VERY nifty. If you set up the equations wrong, the answer do not report right and you have to go back and check every darn coefficient again... Then redo the whole thing until it does come out right...

Like, I know that nint uses Newtonian approximation, just want to know how this rref works...

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# Calculators Ti89 error

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