Function harmonicMean

harmonicMean(array: readonly number[]): number
Get the harmonic mean of an array of numbers.

Time complexity: O(n)

Space complexity: O(1)
Parameters
- array: readonly number[]
  The array to calculate the mean of
Returns number
The geometric mean of the array

Math
Example
```
const array = [1, 4, 4];

harmonicMean(array); // 2
```
See
- (mean:1) to calculate the arithmetic mean of an array
- geometricMean to calculate the arithmetic mean of an array
- Defined in src/math/harmonic-mean.ts:25