matrices declaration!?

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hello!
i new member in forum, , beginner in programing arduino ... wanted know how declare matrix , inverse , transpose... etc
indeed, want make small program controlling level of liquid in tank needs idetification real-time parameters of mathematical model of controlled system. (i use methods of identifying there many matrix computation)..!!
help me i'm lost!!!! :-/

i think lost  :)  you're in world of integer-only 8-bit microcontrollers , you're trying real-time system identification. that's wrong world. want development platform power: 32-bit processing , lots of mhz floating point support built in (arm9 architecture example).

if want start matrices, google "matrix c++ class". there lots of c++ implementations of matrices choose from.

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