HP HP-15C

Section 2: Numeric Functions 31
Rectangular Conversion. Pressing ´; (rectangular) converts a set of
polar coordinates (magnitude r (x, y). θ
must be entered first then r. Upon executing ´;, x will be displayed
first; press ® to display y.
Keystrokes
Display
|D
Set to Degrees mode (no annunciator).
5 v
5.0000
y-value.
10
10
x-value.
|:
11.1803
r.
®
26.5651
θ; rectangular coordinates converted to
polar coordinates.
30 v
30.0000
θ.
12
12
r.
´;
10.3923
x-value.
®
6.0000
y-value. Polar coordinates converted to
rectangular coordinates.