Re: Help 3 vars. equ's
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Greg Hill wrote:
>
> aaron wrote:
> >
> > My math teacher said that there was a way to use the matrices to solve a
> > system of 3 equations with 3 differnt variables. I have a TI-85
> > Does anyone know how to do it????
> > please help i hate writing all that stuff out!! hehe :)
> Yep.. There are two ways: you can use the built-in matrix editor, or you
Or you could use the 85's simultinous equation solver..
[2nd]-[Simult](stat key)
type the number of varibles, then the equations (1st term, 2nd term....
or, yes, you can use matrices...
References: