Ascender/Descender Ratio Estimator
Estimate the vertical profile of a hand as mean ascender height over mean descender height, banded by the stated rule: ascender-dominant at 1.25 and above (typical of formal Gothic textualis), descender-dominant at 0.8 and below (typical of cursives), otherwise balanced.
Description
Estimate the vertical profile of a hand as mean ascender height over mean descender height, banded by the stated rule: ascender-dominant at 1.25 and above (typical of formal Gothic textualis), descender-dominant at 0.8 and below (typical of cursives), otherwise balanced.
Ascender/Descender Ratio Estimator: Estimate the vertical profile of a hand as mean ascender height over mean descender height, banded by the stated rule: ascender-dominant at 1.25 and above (typical of formal Gothic textualis), descender-dominant at 0.8 and below (typical of cursives), otherwise balanced.
When to use Ascender/Descender Ratio
Use this palaeographic utility to apply a stated dating, script, abbreviation, codicological, metrological, layout, or condition rule consistently while preparing manuscripts for scholarly review.
- Ascender height (mm)
- Mean ascender height above the headline in mm.
- Descender depth (mm)
- Mean descender depth below the baseline in mm.
How Ascender/Descender Ratio works
Estimate the vertical profile of a hand as mean ascender height over mean descender height, banded by the stated rule: ascender-dominant at 1.25 and above (typical of formal Gothic textualis), descender-dominant at 0.8 and below (typical of cursives), otherwise balanced. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- A/D ratio
- Ascender height divided by descender depth.
- Profile band
- Profile band from the stated cut-offs.
Limitations and assumptions
- Script and manuscript evidence varies by language, region, institution, period, scribe, material, restoration, and cataloguing convention. A heuristic flag or score is not an authoritative date, hand attribution, reading, provenance, or conservation diagnosis.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Retain page images, scale, foliation, material, provenance, diplomatic transcription, uncertainty, and comparison exemplars; confirm conclusions with codicological context and specialist judgment.
References
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Palaeography — Wikipedia contributors
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