Texas Instruments TI Programmable 57

SECTION 2: ADVANCED/
“SLIDE RULE” KEYS
Example:
Convert
R=45
meters,
@
=
31.6°
into
rectangular
coordinates
x=?
Press DispLay/COMMENTS
Turn calculator OFF & ON 0 Calculator is in degree mode
45 [#8] 31.6 Enter polar coordinates: R, then @.
(2nd)
23.579366
“y"
value
(zt) 38.327712 ‘x" value
Note: This conversion will make use of memory 7 (the ‘'t” register) — so be
sure not to use memory 7 while you're doing a polar to rectangular
conversion (you'll lose numbers stored there).