fx-82MS fx-82TL fx-9860GII TI-83
Rec(
On a Casio calculator you can convert polar coordinates (r, θ) to rectangular coordinates (x, y)
▷ ANGL ▷ Rec( OPTN F6 F5 F6 F2
or via the catalog as
CATALOG P
INPUT SHIFT 4 Rec( F1
Example 1
To convert polar coordinates (r = 2, θ = 60°) to carthesian coordinates (x = 1, y = √3)
Rec( √ r ≣ Rec( 2 ٬ SHIFT x² 6 0 EXE Rec(2,60 {1,√3}
and this is in decimal notation
F↔D Rec(2,60 {1,1.732050808}