Description
Return Unicode minus U+2212 followed by absolute exponent for negative values, or an explicit plus followed by exponent otherwise.
Numeric-looking text has both a value and a written form. Signs, decimal places, exponent markers and trailing zeros can carry display information that ordinary numeric conversion discards; formatting a token does not verify its meaning.
Return Unicode minus U+2212 followed by absolute exponent for negative values, or an explicit plus followed by exponent otherwise.
When to use this tool
Use Scientific Exponent Unicode Minus when you need the specified literal representation or text-level numeric diagnostic.
How to use the tool and how it works
- Enter exponent. 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.
Return Unicode minus U+2212 followed by absolute exponent for negative values, or an explicit plus followed by exponent otherwise.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| exponent | Exponent | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| text | Exponent sign and digits using U+2212 for a negative sign. | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"exponent": -12
},
"output": {
"text": "−12"
}
}Limitations and assumptions
- This formats the exponent only, without e/E, a power base, padding, or numeric scientific-notation evaluation.
- 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 or destination-specific formatter when broader parsing and presentation rules are needed. Retain original text when lexical precision matters and validate numeric meaning separately.
References
Similar or alternative tools
- Formatting: Exponent Sign Zero Padding
Pad magnitude and prefix minus or the optional positive plus sign.
- Signed Exponent E Notation Token
Require a signed decimal mantissa, allowing .5 or 1., and append e or E plus the signed integer exponent, explicitly adding plus for nonnegative exponents.