When I go into the data/matrix editor and plug in points to get a linear regression line, it won't let me graph it, saying that there's a "variable or flash application in use." what can i do to fix this?
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Product Troubleshooting for TI-89 Calculator
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First stop the application that is running [2nd][Quit] or [Escape]
From Home screen
[Apps][Data/Matrix Editor/][3:new] name the data set when asked.
A table is displayed Enter the values in list c1 and c2 You can rename the variables in header.
When finished press [F5:calc]
In calculation type right arrow select 5:linReg in front of x enter c1, in front of y enter c2 and [enter] to save. the equation shows when you press [ENTER]
Hope it helps.