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.
Full Definition of PENCHANT. : a strong and continued inclination; broadly: liking. See penchant defined for English-language learners. See penchant defined for kids.ADVERTISEMENT. âWendy Kaminer, Atlantic, April 1998. 2  From both her father and mother she had inherited a penchant for art, literature, philosophy, and music. 3  Already at eighteen she was dreaming of painting, singing, writing poetry, writing books, actingâanything and everything.