The easiest way to understand this hierarchy is through , which describes the number of indices needed to represent a physical quantity.
– Quantities with only magnitude (e.g., mass, temperature).
– Quantities with both magnitude and direction (e.g., velocity, force). They have 3 components in 3D space.
This introduction covers the fundamental transition from simple to the generalized framework of tensor analysis , a critical progression for fields like general relativity, fluid dynamics, and solid mechanics. 1. From Scalars to Tensors (Rank)
