Kappa

For other uses, see Kappa (disambiguation).

Kappa (uppercase/lowercase Κ κ) is the letter of the Greek alphabet used to represent the "k" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 20. Letters that came from it include the Roman K and Cyrillic К.

Greek alphabet
Αα	Alpha	Νν	Nu
Ββ	Beta	Ξξ	Xi
Γγ	Gamma	Οο	Omicron
Δδ	Delta	Ππ	Pi
Εε	Epsilon	Ρρ	Rho
Ζζ	Zeta	Σσς	Sigma
Ηη	Eta	Ττ	Tau
Θθ	Theta	Υυ	Upsilon
Ιι	Iota	Φφ	Phi
Κκ	Kappa	Χχ	Chi
Λλ	Lambda	Ψψ	Psi
Μμ	Mu	Ωω	Omega
Other letters
Ϝϝ	Digamma	Ⱶⱶ	Heta
Ϻϻ	San	Ϙϙ	Koppa
Ϡϡ	Sampi	Ϛϛ	Stigma
Ϸϸ	Sho
Category Commons

The letter κ always stands for the sound "k" in Greek. It is customary to transliterate (re-write) κ as "c" in English, but this is somewhat problematic since c is pronounced as "s" before e, i and y (which does not happen in Greek).

In mathematics, the lowercase [math]\displaystyle{ \kappa }[/math] is used to represent the curvature of a curve, while the uppercase Κ is used to represent an ordinal number which is also a cardinal number.

Kappa Media

• 

  Alternate version of the lowercase Greek letter kappa in Garamond. This SVG image replaces

• Greek lc kappa2.png.
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  Greek word καί written with a handwritten variant of kappa, from the Byzantine period

Related pages

• Thermal conductivity, represented by [math]\displaystyle{ \kappa }[/math]