Mathitat
Serious maths,
gently done.

The small raised number showing a power; plural indices.

In Español · sample
índice (exponente)El pequeño número elevado que indica una potencia; en plural, índices (indices).

The index says how many times to multiply — numbers and letters alike.

Numbers: 2³ = 2 × 2 × 2 = 8.

Algebra: x³ = x × x × x.