|Re: Polar Coordinates|
Message #3 Posted by Hal Bitton on 19 Apr 2007, 12:12 p.m.,
in response to message #1 by Sara
Go to the MTH menu (left shifted SYMB key), and the VECTR sub menu (far left), and press NXT. You will see RECT (rectangular) and CYLIN (polar) soft key labels on the far left. Enter your coordinates in a suitable format (x,y) for rectangular, or (magnitide,<angle) for polar (note that the less than symbol really represents the angle symbol, which is accessed by ALPHA right shift 6 on the calculator. Once you get the coordinates on level 1 of the stack, simply select rectangular or cylindrical (using the F1 and F2 soft keys) to convert. If you key in coordinates in one system (say rectangular), and the the other system is selected (in this case CYLIN), the conversion will take place as soon as you hit the enter key, and vise-versa.
This is rather keystroke intensive compared to the old machines (where you just threw two numbers onto the stack and hit the P<R key), but bear in mind that with the 50G, you don't have to convert to do vector arithmatic. (I.E. you can add two sets of polar coordinates without having to convert them to rectangular and back again...the calculator will do that for you).
Best regards, Hal