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Initial term of arithmetic progression,arithmetic sequence (given common difference,arithmetic series)
Formula
a1
initial term
Sn
arithmetic series, sum of n elements
d
common difference
n
number of elements
Formula description
In mathematics, an arithmetic progression (AP) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. For instance, the sequence 3, 5, 7, 9, 11, 13, ... is an arithmetic progression with common difference 2. The sum of the members of a finite arithmetic progression is called an arithmetic series.