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10 cards from this deck
Pattern where each term differs by same constant amount
Constant amount between consecutive terms
AP (arithmetic progression)
Tn=a+(n−1)dT_n = a + (n-1)dTn=a+(n−1)d
First term
Common difference
All consecutive differences must be equal
Tn−Tn−1T_n - T_{n-1}Tn−Tn−1
Tn−Tn−1=dT_n - T_{n-1} = dTn−Tn−1=d for all n≥2n \geq 2n≥2
AP is discrete version (domain = positive integers)
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