Description
Apply the English 11-13 exception and last-digit suffix, then append ordinary or modifier-letter raised suffix according to superscript.
English ordinal endings depend on the last digits, including the exceptional endings for eleven through thirteen. Suffix generation is a language-specific presentation rule rather than a numeric change or an interpretation of rank.
Apply the English 11-13 exception and last-digit suffix, then append ordinary or modifier-letter raised suffix according to superscript.
When to use this tool
Use Ordinal Indicator Superscript Choice when you need an English ordinal suffix or its specified raised-letter display.
How to use the tool and how it works
- Enter value, superscript. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read text. Use the output convention below.
Require nonnegative integer value. Apply the English 11-13 exception and last-digit suffix, then append ordinary or modifier-letter raised suffix according to superscript.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| value | Value under the stated unit, type, and placeholder convention. | Required. Safe integer; minimum 0. |
| superscript | Superscript | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| text | Literal formatted output under the stated grammar and display convention. | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"value": 21,
"superscript": true
},
"output": {
"text": "21ˢᵗ"
}
}Limitations and assumptions
- Raised letters are Unicode approximations rather than rich-text superscript markup. The formatter is English-specific and does not infer an ordinal's real-world meaning.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a locale-aware ordinal formatter for other languages and grammatical contexts. Keep the original integer text when large-value precision or spelling must be retained.
References
Similar or alternative tools
- Formatting: Ordinal Suffix Integer English
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- Binary Unit Symbol Spacing Tool
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