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An infinite series of any rational function of can be reduced to a finite series of polygamma functions, by use of partial fraction decomposition, [8] as explained here. This fact can also be applied to finite series of rational functions, allowing the result to be computed in constant time even when the series contains a large number of terms.
The partial sums of the series 1 + 2 + 3 + 4 + 5 + 6 + ⋯ are 1, 3, 6, 10, 15, etc.The nth partial sum is given by a simple formula: = = (+). This equation was known ...
[1] [2] Every term of the harmonic series after the first is the harmonic mean of the neighboring terms, so the terms form a harmonic progression; the phrases harmonic mean and harmonic progression likewise derive from music. [2] Beyond music, harmonic sequences have also had a certain popularity with architects.
1.3 Sum of a series. 2 Grouping and rearranging terms. ... (1823), who also gave a general form for the remainder of the Maclaurin formula. The most important ...
3.1.2 Logarithm of a ... 6.7 Double series formula. ... This method leverages the fine differences between closely related terms to stabilize the series. The sum over ...
The sum of the members of a finite arithmetic progression is called an arithmetic series. For example, consider the sum: For example, consider the sum: 2 + 5 + 8 + 11 + 14 = 40 {\displaystyle 2+5+8+11+14=40}
The geometric series is an infinite series derived from a special type of sequence called a geometric progression.This means that it is the sum of infinitely many terms of geometric progression: starting from the initial term , and the next one being the initial term multiplied by a constant number known as the common ratio .
The first few terms of the sin series are ()! + ()! ()! + which can be recognized as resembling the Taylor series for sin x, with (s) n standing in the place of x n. In analytic number theory it is of interest to sum