Formula
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d
common difference
Sn
arithmetic series, sum of n elements
a1
initial term
n
number of elements
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Common difference of arithmetic progression,arithmetic sequence (given initial term and arithmetic series)
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.
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Sn
a1
n
d
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