Unit Vectors. It is convenient to use vectors of unit length to specify the directions of vector quantities in the various coordinate systems. In cartesian coordinates it is typical to use i, j and k to represent unit vectors in the x, y and z directions respectively.nit Vectors. It is convenient to use vectors of unit length to specify the directions of vector quantities in the various coordinate systems. In cartesian coordinates it is typical to use i, j and k to represent unit vectors in the x, y and z directions respectively.
Freebase(0.00 / 0 votes)Rate this definition: The Enchantress is the name of two fictional characters in the Marvel Comics universe. The first of which is a powerful sorceress named Amora and is one of the most notable antagonists of Thor.
Edit Page Last Edit: June 1, 2013 - 3 years 10 months ago. Enchanting is the process of enhancing player or companion gear with Enchantments and Runestones. There are several different types, each of which can be obtained in seven different ranks. Rank 1 runestones are the least powerful and can be obtained in low level loot and from quest and event rewards.