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General Discussion Board \ Math Help \ TI 83+ using the solve( function to solve (x+2)(x+2)=0

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AuthorComment
erdeky
Probe
Posted: 11 Jul 2011
13:00 GMT
Total Posts: 6
Is there a way to get solve( (x+2)(x+2),x,?,{-E9,E9} ) to give -2 without setting ? to -2?

Thanks,
Joe
haveacalc
Guardian
avatar
Posted: 12 Jul 2011
20:43 GMT
Total Posts: 1111
You don't want to use solve( for quadratic equations. Perhaps a quadratic solver?

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-quoted directly from most movies that don't exist (and some that do).
erdeky
Probe
Posted: 13 Aug 2011
12:24 GMT
Total Posts: 6
What I want to do is write a program for the 83/84 to solve general equations (not just quadratic or polynomial), but any type that may or may not have a double root. As you know double roots may cause a NO SIGN CHNG error. That is what I want to avoid.

Thanks,
Joe





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