Euro sign is u20AC. To convert a degree to a radian you use the following fomular. An angle r in radians has measure 180 r MathPI in degrees.
Two very simple operations that you may have to deal with if writing a JavaScript that deals with trigonometry are Mathdegrees and Mathradians.
Return radians 180pi. If you want to use degrees instead of radians you have to convert degrees to radians. Mathradians functiondegrees return degrees MathPI 180. An angle r in radians has measure 180 r MathPI in degrees.