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.
What are enchantments? Enchantments are bonuses gained when placed on tools, weapons, and armor. To obtain them, they require experience levels and an enchantment table. The more powerful the enchantment, the higher the experience level cost. The enchantment power obtainable is influenced by the number of bookshelves surrounding the enchantment table. The begin enchanting an item, craft an enchantment table and place it on the ground. Right click on it to bring up the enchanting menu. Notice the square under the enchantment book. Place an enchantable item here and three random enchantments will appear to the right.