Android RPN app?

[Maximilian Hohmann]

Hello!

(01-31-2021 05:24 PM)Peet Wrote:  Maybe you can help me on my question (the thread is about an example from the TI58/59 manual) in this thread:

Do you mean this one here?

(((2x(2x(2x(2xSIN(2x(2+2^(2+.2))-(2+2))))))/2)/2)

First, you can leave the outermost parentheses away. It would have worked with these as well, but 8 levels of paranetheses are enough (because the calculator knows about operator precedence, the parentheses around the 4 multiplications at the beginning should also be obsolete, unless the equation for some reason requires them):

((2x(2x(2x(2xSIN(2x(2+2^(2+.2))-(2+2))))))/2)/2

All you have to do now is move the sine (which is a postfix (?) key) behind it's argument:

((2x(2x(2x(2x(2x(2+2^(2+.2))-(2+2))SIN))))/2)/2

and you can type it in as it is written here...

All this would of course be much easier if one would start from the equation.

Regards
Max