Stage 26 · Sequences

26.1.3 A Sequence Is a Special Function

26.1 From Functions to Sequences: Numbers in Order

Point 3 of 6

26.1.3 A Sequence Is a Special Function

Core idea

Let a function take only the inputs 1, 2, 3, … and its string of outputs becomes a sequence aₙ=f(n)

Module goal. Narrow the functions you already know down to whole-number inputs only, and build the basic language of sequences, general terms, and recurrence.
eastmath.com · 26.1 From Functions to Sequences: Numbers in Order · 26.1.3 A Sequence Is a Special Function