How to Program on the TI-89

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  • Thread starter GENHEN
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Hey guys, I recently tried to program something to convert cartesian coordinates into spherical coordinates. I have been using the TI-89 Titanium and my limited programming ability to program it. I know of the temporary input function where x^2|x=2 makes the output 4, but how do I input multiple constants like z=ρ*cos(ψ) and x=ρ*sin(ψ)*cos(θ) without assigning it to a letter with the arrow → (because I know how to do that, except later it gets quite annoying when every time you use that letter, it keeps using the old inputs from the program >_<).
 

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