rounding
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Rounding
There are four rounding modes:
trunc– zeroes the fractional part of the numberfloor– rounds the number downceil– round the number upround– rounds the number to the closest integer
Rounding table:
| x | round(x) | floor(x) | ceil(x) | trunc(x) |
|---|---|---|---|---|
| 2.3 | 2 | 2 | 3 | 2 |
| 3.8 | 4 | 3 | 4 | 3 |
| 5.5 | 6 | 5 | 6 | 5 |
| -2.3 | -2 | -3 | -2 | -2 |
| -3.8 | -4 | -4 | -3 | -3 |
| -5.5 | -5 | -6 | -5 | -5 |
Every rounding mode is available as two functions. The ones with the i prefix in the name return an integer, while the ones without return a fixed-point number:
rounding.1497283140.txt.gz · Last modified: 2017/06/12 18:59 by korshun