HP 32SII - Manual (Page 71)

Real–Number Functions 4–7
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Conversion Functions
There are four types of conversions: coordinate (polar/rectangular), angular
(degrees/radians), time (decimal/minutes–seconds), and unit (cm/in, °C/°F,
l/gal, Kg/lb).
Coordinate Conversions
The function names for these conversions are y,x θ,r and θ , r y,x.
Polar coordinates (r , θ) and rectangular coordinates (x,y) are measured as
shown in the illustration. The angle θ uses units set by the current angular
mode. A calculated result for θ will be between –180° and 180°, between – π
and π radians, or between –200 and 200 grads.
x
y
r
θ
To convert between rectangular and polar coordinates:
1. Enter the coordinates (in rectangular or polar form) that you want to
convert. The order is y š x or θ š r.
2. Execute the conversion you want: press z q (rectangular–to–polar)
or { r (polar–to–rectangular). The converted coordinates occupy
the X– and Y–registers.
3. The resulting display (the X–register) shows either r (polar result) or x
(rectangular result). Press Z to see θ or y.