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Trigonometric functions: Difference between revisions
Added Haskell example
(→{{header|Java}}: Now uses Math functions to convert to and from degrees and radians, syntax highlighting) |
(Added Haskell example) |
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cr fdup facos f.
cr fatan f. \ also available: fatan2 ( r1 r2 -- atan[r1/r2] )
=={{header|Haskell}}==
Trigonometric functions use radians; degrees require conversion.
fromDegrees deg = deg * pi / 180
toDegrees rad = rad * 180 / pi
example = [
sin (pi / 6), sin (fromDegrees 30),
cos (pi / 6), cos (fromDegrees 30),
tan (pi / 6), tan (fromDegrees 30),
asin 0.5, toDegrees (asin 0.5),
acos 0.5, toDegrees (acos 0.5),
atan 0.5, toDegrees (atan 0.5)]
=={{header|J}}==
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