--Conversion
values degrees(3.1415926);
values radians(180);
-- This is equal to Pi.

--PI/4 45
values sin(radians(180)/4);
values sin(radians(45));
values cos(radians(180)/4);
values cos(radians(45));
values tan(radians(180)/4);
values tan(radians(45));
values cot(radians(180)/4);
values cot(radians(45));
values asin(sin(radians(180)/4));
values asin(sin(radians(45)));
values atan(tan(radians(180)/4));
values atan(tan(radians(45)));

--PI/3 60
values sin(radians(180)/3);
values sin(radians(60));
values cos(radians(180)/3);
values cos(radians(60));
values tan(radians(180)/3);
values tan(radians(60));
values cot(radians(180)/3);
values cot(radians(60));
values asin(sin(radians(180)/3));
values asin(sin(radians(60)));
values atan(tan(radians(180)/3));
values atan(tan(radians(60)));