For some reason, the map function returns a list that has one more element than my input list. My input list is a range defined by [0, 60..359] (should translate into [0,60,120,180,240,300]). The function I'm giving to map is defined this way: ----- degreesToRadians :: Double -> Double degreesToRadians degrees = degrees * (pi / 180) ----- This is how I'm calling map overall: -----
map degreesToRadians [0,60..359] [0.0,1.0471975511965976,2.0943951023931953,3.141592653589793,4.1887902047863905,5.235987755982989,6.283185307179586 ]
As you can hopefully see, there are seven elements instead of six. Getting the length confirms this: -----
length [0,60..359] 6 length $ map degreesToRadians [0,60..359] 7
I do not seem to get this behaviour with the length if I either substitute the degreesToRadians function or substitute the [0,60..359] range. P.S. Is there a built-in function to convert degrees to radians and vice-versa?