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Math function
ISO.CEILING
Rounds a number up to the nearest multiple of significance using the ISO rule, ignoring the sign of significance.
Rarely usedDifficulty 1250 · ProficientUsage rank #284 of 520
When to use it
Same as CEILING.PRECISE: rounds up toward positive infinity to a multiple, ignoring the sign of significance. Provided for ISO naming compatibility.
The shape of it
- Syntax
=ISO.CEILING(number, [significance])
Worked examples
Whole number
=ISO.CEILING(4.3) → 5
Whole number.
Negative input
=ISO.CEILING(-4.3,2) → -4
Toward positive infinity.
Multiple of seven
=ISO.CEILING(22,7) → 28
Next multiple of 7.
Worth knowing
- Use CEILING.MATH in new work; this exists for spreadsheets exchanged with other ISO-compliant tools.
- The sign of significance is ignored.
- Significance defaults to 1.
Where it goes wrong
- Not in Excel 2007 or earlier.
- Autocomplete lists it separately from CEILING, which confuses people looking for one rounding function.
Related
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