Rosetta Code

Vector products

Compute the dot product and cross product of two fixed three-dimensional vectors.

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Sourcerosettacode/popular/vector_products.vibe
def dot(left: array<int>, right: array<int>) -> int
  (left.fetch(0) * right.fetch(0)) + (left.fetch(1) * right.fetch(1)) + (left.fetch(2) * right.fetch(2))
end

def cross(left: array<int>, right: array<int>) -> array<int>
  [
    (left.fetch(1) * right.fetch(2)) - (left.fetch(2) * right.fetch(1)),
    (left.fetch(2) * right.fetch(0)) - (left.fetch(0) * right.fetch(2)),
    (left.fetch(0) * right.fetch(1)) - (left.fetch(1) * right.fetch(0))
  ]
end

def run -> { cross: array<int>, dot: int }
  left = [3, -5, 4]
  right = [2, 6, 5]
  {
    dot: dot(left, right),
    cross: cross(left, right)
  }
end

Output

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