Easy as “Pi” Conversion between Degrees and Radians
When working through trig functions in articles such as “How to Constrain Dragging to a Circle,” I often find myself having to convert degrees into radians and vice versa. The formulas are truly simple … but they’re so similar, I often confuse them. For the record:
radians = degrees * (pi / 180)
degrees = radians * (180 / pi)However, in a pinch, just use Google. Type, for example, “90 degrees in radians” (without quotes) into the search field and bingo! instant conversion.
December 14th, 2006 at 3:32 pm
Very useful indeed. Whenever I need to convert, I just remember that 360º=2pi radians. From there, you get 1º=pi/180 radians, or 180/pi º = 1 radian.