A Mathematical Approach to Tensors

A matrix is a linear map of a vector to another vector. A tensor is a multilinear map of a tensor to another tensor.

This is part of a matrix. This is stop 20 on the Road to Quantum Mechanics.

There are a lot of bad explanations in science and math.

• “Spin is like a ball that’s spinning, except it’s not a ball and it’s not spinning.”
• “Entropy is disorder.”
• “A vector is an element of a vector space.”