Browse Teach Curate

Subscript Notation for Indexed Variables in Algebra

Reading a subscript on a variable as a position label that selects one member of an indexed collection, as in a_1, a_2, a_n.

B9 Video

for Linear Algebra Matrix Index Notation in Tensor Calculus

The abstract theory presented is Einstein Index Notation within Tensor Calculus and Linear Algebra, providing a compact framework for expressing matrix entries $A_{ij}$ using subscripts that serve si…