Maths Dictionary · SS 2
Arithmetic progression (AP)
Also called: arithmetic sequence, linear sequence
Simple meaning
A sequence where you add (or subtract) the same number each time.
Example
5, 8, 11, 14, … (add 3 each time).
See it
From the Arithmetic Progression lesson. Try moving things around.
Tₙ = 3 + (n − 1)×4 = 4n − 1
First term a3
Difference d4