Leonardus
Dissenting LeoScript Operator atan

STACK

$ {I|R}_1\ {I|R}_2\ --\ R $

DESCRIPTION

Red book arc tangent operator of $ Z_1/Z_2 $. But additionally honours the Context angular unit: RAD or DEG.
Throws undefinedresult if both $ Z_1 $ and $ Z_2 $ are 0.
The range of values is the entire circle, either in radians or in degrees.

ORIGIN

Core code registered in systemdict.

CONVERSION

Implicit conversion from I to R for I parameters.

SEE ALSO

Extension LeoScript Operator RAD Extension LeoScript Operator DEG Figurative LeoScript Operator atan1