Operator: Vector Sum

Operator: Vector Sum is a Vector Spell Piece added by Psi. It is a vector that is the sum of at least two vectors added together. It can be expressed as $$\vec{v_{1}}+\vec{v_{2}}=\vec{v_{3}}$$, where $$\vec{v_{1}}$$ and $$\vec{v_{2}}$$ are two vector addends and $$\vec{v_{3}}$$ is the summed vector. It can be imagined as two arrows, with the resultant vector being the hypotenuse of the angle created from putting a head to a tail. Having a vector pointing in the opposite direction is the same as vector subtraction. It is unlocked in the lesson "Vectors 101."

Parameters

 * Vector A: Requires a vector.
 * Vector B: Requires a vector.
 * Vector C: Optional. Requires a vector.