Numerical Values
Numerical values play an integral role in HMIs, and therefore the HELIO IDE and the HELIO Docs.
To make sure they're easy to read, it's crucial to keep the formatting consistent.
Guidelines
Do
- To make sure the numbers are lined up right across multiple lines, use either a monospaced font or the font-variant:
tabular-nums. - Separate value and unit using a non-breaking space
- Use en dashes to show numerical ranges. Do not use spaces between numbers and the dash.
Properties
Value
Actual numerical value.
Unit
Optional metadata that tells customers what quantity unit is being used.
Examples
With units
345 min
24 kg
55 BCE
6:35 p.m.
Ranges
1–100
10–20
Ranges With Unit
1–100 min
10–20 kg
Sources & Inspiration
Chicago Manual of Style
A numeral used with an abbreviated unit of measure is best left intact; either the numeral should be carried over to the next line or the abbreviation should be moved up. A nonbreaking space can prevent such breaks (see 6.129). (Numerals used with spelled-out units of measure, which tend to form longer expressions, may be broken across a line as needed.)
– 7: Spelling, Distinctive Treatment of Words, and Compounds > 7.43: Dividing numerals