Press and release the 2nd key and then press the up-arrow to darken or the down-arrow to lighten. Repeat as needed.
SOURCE: How do I increase the screen brightness on my TI-85 calculator?
push the 2nd key and then the up arrow.
Jon
SOURCE: TI-86 Calculator Problem
Most likely you're trying to graph a function while you have the stat plot turned on. Turn off the stat plot and try it again.
SOURCE: What does error #13 dimension mean on my TI-86
Three possibilities:
1) You entered an argument with an inappropriate dimension.
2) You entered a matrix or vector dimension < 1 or > 255 or a noninteger.
3) You attempted to invert a matrix that is not a square matrix.
If you need further help, please specify the exact problem you're trying to solve.
SOURCE: What are the steps to find the cube root of a
Use the root function in the MATH MISC menu.
To find the 5th root of 32: enter 5 then the root function and then 32 and then ENTER to get 2.
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