lz_hmean
The harmonic mean of a list.
long lz_hmean( CLZNumber** values, long count, CLZNumber* targetNumber );The count over the sum of the reciprocals, correctly rounded. It takes an array and a count, as lz_amean does, and the target is required. A negative value is refused, kFailed, flagged not-a-number, and a nought makes the mean nought.
Examples
| Call | Answer |
|---|---|
lz_hmean( { 1, 2, 4 } ) | 1.714285714285714285714285714285714286 |
lz_hmean( { 40, 60 } ) | 48 |
lz_hmean( { 0, 5 } ) | 0 |
Each answer is what Addaptic printed for the call, at 36 places unless a setting is shown.
Returns
kNoError (0) when the answer is written. Otherwise an error code, with the answer flagged infinite or not-a-number; see Errors and flags.