☰std/vector2/dot

Calculates a dot product of the given vectors. Returns a scalar.

Type signature

([a, b]: [number, number], [c, d]: [number, number]) => number

Examples

dot([3, 5], [-1, 8]);
// ⇒ 37
Try in REPL 
dot([3, 5], [-1, -8]);
// ⇒ -43
Try in REPL

Questions

  • How to compute a dot product of two vectors?

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