init(bySubtractingVector:fromVector:) Declarationinit(bySubtractingVector v1: VNVector, fromVector v2: VNVector) See AlsoCreating a Vectorinit(byAdding:to:)init(byAddingVector:toVector:)init(bySubtracting:from:)init(byMultiplying:byScalar:)init(byMultiplyingVector:byScalar:)init(r:theta:)init(vectorHead:tail:)init(XComponent:yComponent:)init(xComponent:yComponent:)init(coder:)zero