Function to get a vector from 2 points.
Function to compute the dot product of 2 vectors.
Fix vector from points function.
Fix dot product function.
Function to compute the cross product between 2 vectors.
Bugfix vector_operators (Struct naming error).
Function to add 2 vectors.
Function to substract 2 vectors.
Function to scale a vector.
Function to normalize a vector.
Update TODO.