# scalar

A scalar is a quantity that is invariant under coordinate transformation, also known as a tensor of rank 0. For example, the number 1 is a scalar, so is any number or variable $n\in\mathbb{R}$. The point $(3,4)$ is not a scalar because it is variable under rotation. As such, a scalar can be an element of a field over which a vector space is defined.

Title scalar Scalar 2013-03-22 11:58:55 2013-03-22 11:58:55 mathcam (2727) mathcam (2727) 8 mathcam (2727) Definition msc 15A03 Vector EigenvalueOfALinearOperator AxialVector3