roundTo(value, place, base) → {number}
Round to some place comparative to a base, default is 10 for decimal place.
The place is represented by the power applied to base to get that place.
e.g. 2000/7 ~= 285.714285714285714285714 ~= (bin)100011101.1011011011011011 roundTo(2000/7,3) === 0 roundTo(2000/7,2) == 300 roundTo(2000/7,1) == 290 roundTo(2000/7,0) == 286 roundTo(2000/7,-1) == 285.7 roundTo(2000/7,-2) == 285.71 roundTo(2000/7,-3) == 285.714 roundTo(2000/7,-4) == 285.7143 roundTo(2000/7,-5) == 285.71429 roundTo(2000/7,3,2) == 288 -- 100100000 roundTo(2000/7,2,2) == 284 -- 100011100 roundTo(2000/7,1,2) == 286 -- 100011110 roundTo(2000/7,0,2) == 286 -- 100011110 roundTo(2000/7,-1,2) == 285.5 -- 100011101.1 roundTo(2000/7,-2,2) == 285.75 -- 100011101.11 roundTo(2000/7,-3,2) == 285.75 -- 100011101.11 roundTo(2000/7,-4,2) == 285.6875 -- 100011101.1011 roundTo(2000/7,-5,2) == 285.71875 -- 100011101.10111
Note what occurs when we round to the 3rd space (8ths place), 100100000, this is to be assumed
because we are rounding 100011.1011011011011011 which rounds up.
Parameters
| Name | Type | Argument | Default | Description |
|---|---|---|---|---|
value | number | The value to round. | ||
place | number | <optional> | 0 | The place to round to. |
base | number | <optional> | 10 | The base to round in. Default is 10 for decimal. |
Returns
number -
The rounded value.
- Source code: math/Math.js (Line 235)
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