- Trigonometry functions\r
- ----------------------\r
-\r
-sin ( a -- result ) return sinus from given angle "a",\r
- 360ø is 2000. So 1000 represents 180ø angle.\r
- Result will be in range -10'000 to 10'000, instead of ñ1.\r
-\r
-cos ( a -- result ) return cosinus from given angle.\r
- Parameters are like in "sin" function.\r