(I think) technically, all of these mathematical objects are tensors of different ranks: 0. Scalar numbers are tensors of rank 0. 1. Vectors (eg velocity, acc

(I think) technically, all of these mathematical objects are tensors of different ranks: 0. Scalar numbers are tensors of rank 0. 1. Vectors (eg velocity, acceleration in intro high school physics) are tensors of rank 1. 2. Matrices that you learn in intro linear anlgebra are tensors of rank 2. Nested arrays 1 level deep, aka a 2d array. 0. Tensors numbers are tensors of rank 3 or higher. I explain this as ‘nested arrays’ to people with programming backgrounds as nested arrays of arrays with 3dimensions of arrays or higher. But I’m mostly self-taught in math so ymmv.