# Question #2872d

##### 1 Answer

Dec 16, 2017

A rank-m tensor is a mathematical object that represents

**rank-0 Tensor**: represents a single real number and is usually called a **scalar**. Examples of rank-0 tensors (scalars) are temperature, density etc.

**rank-1 Tensor**: represents N real numbers and is usually called **vectors**. Examples of rank-1 tensor (vector) are velocity, force, etc.

**rank-2 Tensor**: represents N^2 real numbers that can be arranged as a ** #N\timesN# matrix**. Examples of rank-2 tensors are Moment-of-inertia, Riemann Curvature etc.