Editing Koppa (letter) (section)

== Numeric ==
Koppa remained in use in the system of [[Milet|Milesian]] Greek [[Greek numeral|numerals]], where it had the value of 90. It has continued to be used in this function into modern times, though its shape has changed over time.<ref name="eversoncase">{{cite web|url=http://dkuug.dk/jtc1/sc2/wg2/docs/n1938.pdf|title=On GREEK LETTER KOPPA|last1=Everson|first1=Michael|year=1998}}</ref> In the Greek [[cursive|cursive script]], the Q-like shape with a closed circle on top (handwritten as [[File:Greek Koppa cursive 01.svg|x16px]]) was often broken up at the side ([[File:Greek Koppa cursive 02.svg|x16px]]) or at the top ([[File:Greek Koppa cursive 03.svg|x16px]]). These are also the shapes in which it was borrowed into the early Cyrillic alphabet ([[Ҁ]]), as well as into [[Gothic alphabet|Gothic]] (<span style="background-color: white;">[[File:Gothic Numeral 90.svg|x20px]]</span>), in both cases with the same numeric function. In modern [[Church Slavonic]], a similar-looking but unrelated letter [[Ч]] is used instead of the former. Similarly, in the [[Coptic alphabet|Coptic]] script, the identical-looking sign ϥ is also used as a numeral for 90, although as an alphabetic letter it has an unrelated sound value, {{IPA|/f/}}, derived from [[Demotic (Egyptian)|Egyptian demotic]]. Later, in [[Minuscule Greek|minuscule]] handwriting, the shape changed further into a simple zigzag line ([[File:Greek Koppa cursive 04.svg|x16px]], [[File:Greek Koppa cursive 05.svg|x16px]]).

[[File:Greek capital numerals 01.svg|thumb|right|Example of a 19th-century font using S-shaped capital Stigma (first row) and G-shaped capital Koppa next to [[Sampi]] (second row) .|230x230px]]
[[File:Greek capital numerals 02.svg|thumb|right|Example of a 19th-century font using turned-lamedh-shaped capital Koppa and G-shaped capital Stigma. (Translation: Psalm 96)|230x230px]]
[[File:Greek Stigma and Koppa font design.svg|thumb|right|Stigma and Koppa in modern fonts. Just as in historical typesetting practice, some versions of Stigma may be indistinguishable from some versions of Koppa.|380x380px]]