Cannot use Vectors or Matrics in sets because hashCodes are not equal.

[nikonthethird]

The same vectors return different hashCodes, for example:

final vec1 = Vector.column([1, 2, 3]);
final vec2 = Vector.column([1, 2, 3]);
print('Hash codes are equal: ${vec1.hashCode == vec2.hashCode}');
// This prints: Hash codes are equal: false

To work around this, I have added a function that calculates the hashCode using quiver's hashObjects function:

HashSet<Vector> createVectorSet(Iterable<Vector> vectors) =>
  HashSet<Vector>(
    equals: (vec1, vec2) => vec1 == vec2,
    hashCode: (vec) => hashObjects(vec.toList()),
  )
  ..addAll(vectors);

This fixes the problem and I now can use Vectors in sets. I hope this can be fixed in a future version, computing the union and intersection of Vector sets should work without any fuss.