tan cos etc with casio fx-83ES If i put in tan45 i get answer 0.85408.... when tan 45 = 1 . other trig probs give wrong answer set it up in correct rig mode, mode button (several times) until you get ...
...the ON button, it turns out, but blinks off immediately when I let it go. I thought of trying to rig it so the ON button is held down, but then the other keys do not respond to use. Help!!! Maybe ...
Question about Texas Instruments Office Equipment & Supplies
My screen lost about 8 rows of pixels from the bottom so my calculator is almost useless. I was wondering if they sell replacement screens of if there is a way to fix this. I would like to avoid ...
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