Kappa (letter)

Kappa (Κ κ) is the 10th letter of the Greek alphabet and has a numeric value of 20.

In mathematics, the Kappa Curve[?] is named after this letter; the tangents of this curve were first calculated by Barrow (17th Century).

The upper-case letter Κ is used as a symbol for:

• In textual criticism, the Byzantine text-type (from Κοινη, Koine, the common text).