Harmonic series

There are several types of harmonic series.

The the most basic harmonic series is the infinite sum $\displaystyle\sum_{i=1}^{\infty}\frac{1}{i}=1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+\cdots$ This sum slowly approaches infinity.

The alternating harmonic series, $\displaystyle\sum_{i=1}^{\infty}\frac{(-1)^{i+1}}{i}=1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+\cdots$ , though, approaches $\displaystyle \ln 2$ .

The general harmonic series, $\displaystyle\sum_{i=1}^{\infty}\frac{1}{ai +b}$ , has its value depending on the value of the constants $a$ and $b$ .

The zeta-function is a harmonic series when the input is one.

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Harmonic series

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