Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator
I would prefer the source code so I could manually key it into my calculator because I don't trust the websites where you download the programs plus I can never figure them out. I'm kinda coumputer challanged.
Posted on Apr 09, 2009
To know the x'es in something like X²-3X+2=0
use this: Prompt A,B,C B²-4AC->D Disp " " Disp D Disp " " If D>=0 Then Disp (-B-sqrt(D))/(2A) Disp " " Disp (-B+sqrt(D))/(2A) Else Disp "NO SOLUTION" End Pause ClrHome
this gives 1: the location where the graph crosses the x-axis 2: the 2 solutions of X. If none, it only displays the one above and the text: NO SOLUTION
Posted on Sep 07, 2009
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