Angle difference between two bearings: Difference between revisions
Angle difference between two bearings (view source)
Revision as of 11:24, 13 March 2017
, 7 years ago→{{header|Haskell}}: (layout, function name, narrowed import)
m (→JS ES6: Layout, function name) |
m (→{{header|Haskell}}: (layout, function name, narrowed import)) |
||
Line 185:
=={{header|Haskell}}==
<lang Haskell>import Text.Printf (printf)▼
▲<lang Haskell>import Text.Printf
type Radians = Float
Line 193 ⟶ 192:
angleBetweenDegrees :: Degrees -> Degrees -> Degrees
angleBetweenDegrees a b = degrees $
= sign * acos ((ax * bx) + (ay * by))
where
Line 213 ⟶ 212:
radians = (/ 180) . (pi *)
-- TEST -----------------------------------------------------------------------
main :: IO ()
main =
Line 227:
displayRow (x, y) =
printf "%6.2f° + %6.2f° -> %7.2f°" x y $ angleBetweenDegrees x y</lang>
{{Out}}
<pre> 20.00° + 45.00° -> 25.00°
| |||