Maintainer | diagrams-discuss@googlegroups.com |
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Two-dimensional vectors.

# Special 2D vectors

# Converting between vectors and angles

direction :: Angle a => R2 -> aSource

Compute the direction of a vector, measured counterclockwise from the positive x-axis as a fraction of a full turn. The zero vector is arbitrarily assigned the direction 0.

fromDirection :: Angle a => a -> R2Source

Convert an angle into a unit vector pointing in that direction.

A convenient synonym for `fromDirection`

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