tensors

Noun

tensor (plural tensors or (muscle) tensores)

1. A muscle that tightens or stretches a part, or renders it tense.
2. A mathematical object that describes linear relations on scalars, vectors, matrices and other algebraic objects, and is represented as a multidimensional array.
   • The tensor #92;alpha#95;#123;ij#125; should really be called a “tensor of second rank,” because it has two indexes. A vector—with one index—is a tensor of the first rank, and a scalar—with no index—is a tensor of zero rank.1963, Richard Feynman, “Chapter 31, Tensors”, in The Feynman Lectures on Physics, volume II
   1. A multidimensional array with (at least) two dimensions.
3. (obsolete) A norm operation on the quaternion algebra.

See all 5 meanings of tensor