Κ
# Κ

Kappa o cappa (en mayúscula Κ, en minúscula κ [cursiva ϰ]; llamada en griego antiguo κάππα káppa /káp.pa/, en griego moderno κάπ(π)α káp(p)a /ˈka.pa/) es la décima letra del alfabeto griego.

En el sistema de numeración griega tiene un valor de 20 (Κʹ).

## Historia

### Variantes epigráficas

En las fuentes epigráficas arcaicas aparecen las siguientes variantes:

## Uso

Kappa se usa en griego para el mismo sonido que su equivalente latina, la ka, pero en este idioma es más usada ya que no redunda con C y Q como en el alfabeto latino.

## Unicode

* Griego

| Carácter | Κ | Κ | κ | κ | ϰ | ϰ | Ⲕ | Ⲕ | ⲕ | ⲕ |
| - | - | - | - | - | - | - | - | - | - | - |
| Unicode | GREEK CAPITAL LETTER KAPPA | GREEK CAPITAL LETTER KAPPA | GREEK SMALL LETTER KAPPA | GREEK SMALL LETTER KAPPA | GREEK KAPPA SYMBOL | GREEK KAPPA SYMBOL | COPTIC CAPITAL LETTER KAPA | COPTIC CAPITAL LETTER KAPA | COPTIC SMALL LETTER KAPA | COPTIC SMALL LETTER KAPA |
| Codificación | decimal | hex | decimal | hex | decimal | hex | decimal | hex | decimal | hex |
| Unicode | 922 | U+039A | 954 | U+03BA | 1008 | U+03F0 | 11412 | U+2C94 | 11413 | U+2C95 |
| UTF-8 | 206 154 | CE 9A | 206 186 | CE BA | 207 176 | CF B0 | 226 178 148 | E2 B2 94 | 226 178 149 | E2 B2 95 |
| Ref. numérica | &#922; | &#x39A; | &#954; | &#x3BA; | &#1008; | &#x3F0; | &#11412; | &#x2C94; | &#11413; | &#x2C95; |
| Ref. entidad | &Kappa; | &Kappa; | &kappa; | &kappa; | | | | | | |
| DOS Greek | 137 | 89 | 161 | A1 | | | | | | |
| DOS Greek-2 | 181 | B5 | 228 | E4 | | | | | | |
| Windows 1253 | 202 | CA | 234 | EA | | | | | | |
| TeX | | | \kappa | \kappa | | | | | | |

* Matemáticas

| Carácter | 𝚱 | 𝚱 | 𝛋 | 𝛋 | 𝛞 | 𝛞 | 𝛫 | 𝛫 | 𝜅 | 𝜅 |
| - | - | - | - | - | - | - | - | - | - | - |
| Unicode | MATHEMATICAL BOLD CAPITAL KAPPA | MATHEMATICAL BOLD CAPITAL KAPPA | MATHEMATICAL BOLD SMALL KAPPA | MATHEMATICAL BOLD SMALL KAPPA | MATHEMATICAL BOLD KAPPA SYMBOL | MATHEMATICAL BOLD KAPPA SYMBOL | MATHEMATICAL ITALIC CAPITAL KAPPA | MATHEMATICAL ITALIC CAPITAL KAPPA | MATHEMATICAL ITALIC SMALL KAPPA | MATHEMATICAL ITALIC SMALL KAPPA |
| Codificación | decimal | hex | decimal | hex | decimal | hex | decimal | hex | decimal | hex |
| Unicode | 120497 | U+1D6B1 | 120523 | U+1D6CB | 120542 | U+1D6DE | 120555 | U+1D6EB | 120581 | U+1D705 |
| UTF-8 | 240 157 154 177 | F0 9D 9A B1 | 240 157 155 139 | F0 9D 9B 8B | 240 157 155 158 | F0 9D 9B 9E | 240 157 155 171 | F0 9D 9B AB | 240 157 156 133 | F0 9D 9C 85 |
| Ref. numérica | &#120497; | &#x1D6B1; | &#120523; | &#x1D6CB; | &#120542; | &#x1D6DE; | &#120555; | &#x1D6EB; | &#120581; | &#x1D705; |
| Carácter | 𝜘 | 𝜘 | 𝜥 | 𝜥 | 𝜿 | 𝜿 | 𝝒 | 𝝒 | 𝝟 | 𝝟 |
| Unicode | MATHEMATICAL ITALIC KAPPA SYMBOL | MATHEMATICAL ITALIC KAPPA SYMBOL | MATHEMATICAL BOLD ITALIC CAPITAL KAPPA | MATHEMATICAL BOLD ITALIC CAPITAL KAPPA | MATHEMATICAL BOLD ITALIC SMALL KAPPA | MATHEMATICAL BOLD ITALIC SMALL KAPPA | MATHEMATICAL BOLD ITALIC KAPPA SYMBOL | MATHEMATICAL BOLD ITALIC KAPPA SYMBOL | MATHEMATICAL SANS-SERIF BOLD CAPITAL KAPPA | MATHEMATICAL SANS-SERIF BOLD CAPITAL KAPPA |
| Codificación | decimal | hex | decimal | hex | decimal | hex | decimal | hex | decimal | hex |
| Unicode | 120600 | U+1D718 | 120613 | U+1D725 | 120639 | U+1D73F | 120658 | U+1D752 | 120671 | U+1D75F |
| UTF-8 | 240 157 156 152 | F0 9D 9C 98 | 240 157 156 165 | F0 9D 9C A5 | 240 157 156 191 | F0 9D 9C BF | 240 157 157 146 | F0 9D 9D 92 | 240 157 157 159 | F0 9D 9D 9F |
| Ref. numérica | &#120600; | &#x1D718; | &#120613; | &#x1D725; | &#120639; | &#x1D73F; | &#120658; | &#x1D752; | &#120671; | &#x1D75F; |
| Carácter | 𝝹 | 𝝹 | 𝞌 | 𝞌 | 𝞙 | 𝞙 | 𝞳 | 𝞳 | 𝟆 | 𝟆 |
| Unicode | MATHEMATICAL SANS-SERIF BOLD SMALL KAPPA | MATHEMATICAL SANS-SERIF BOLD SMALL KAPPA | MATHEMATICAL SANS-SERIF BOLD KAPPA SYMBOL | MATHEMATICAL SANS-SERIF BOLD KAPPA SYMBOL | MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL KAPPA | MATHEMATICAL SANS-SERIF BOLD ITALIC CAPITAL KAPPA | MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL KAPPA | MATHEMATICAL SANS-SERIF BOLD ITALIC SMALL KAPPA | MATHEMATICAL SANS-SERIF BOLD ITALIC KAPPA SYMBOL | MATHEMATICAL SANS-SERIF BOLD ITALIC KAPPA SYMBOL |
| Codificación | decimal | hex | decimal | hex | decimal | hex | decimal | hex | decimal | hex |
| Unicode | 120697 | U+1D779 | 120716 | U+1D78C | 120729 | U+1D799 | 120755 | U+1D7B3 | 120774 | U+1D7C6 |
| UTF-8 | 240 157 157 185 | F0 9D 9D B9 | 240 157 158 140 | F0 9D 9E 8C | 240 157 158 153 | F0 9D 9E 99 | 240 157 158 179 | F0 9D 9E B3 | 240 157 159 134 | F0 9D 9F 86 |
| Ref. numérica | &#120697; | &#x1D779; | &#120716; | &#x1D78C; | &#120729; | &#x1D799; | &#120755; | &#x1D7B3; | &#120774; | &#x1D7C6; |
