In pulping, the kappa number represents the amount of an oxidizing agent required for bleaching a pulp.Ĭharacter encodings Character information.
In chemistry, kappa is used to denote the denticity of the compound.
In set theory, kappa is often used to denote an ordinal that is also a cardinal.
In textual criticism, the Byzantine text-type (from Κοινη, Koine, the common text).
In macroeconomics, kappa represents the capital-utilization rate.
In psychology and psychiatry, kappa represents a measure of diagnostic reliability.
In pharmacology, kappa represents a type of opioid receptor.
In biology, kappa designates a subtype of an antibody component.
In biology, kappa and kappa prime are important nucleotide motifs for a tertiary interaction of group II introns.
κ is also used to denote conductivity, the reciprocal of resistivity, rho.
In electrical engineering, κ is the multiplication factor, a function of the R/ X ratio of the equivalent power system network, which is used in calculating the peak short-circuit current of a system fault.
In structural engineering, κ is the ratio of the smaller factored moment to the larger factored moment and is used to calculate the critical elastic moment of an unbraced steel member.
In thermodynamics, the compressibility of a compound is given by κ.
In fluid dynamics, the von Kármán constant is represented by κ.
In physics, the coupling coefficient in magnetostatics is represented by κ.
In physics, the torsional constant of an oscillator is given by κ.
In cosmology, the Einstein gravitational constant is denoted by κ.
Kappa statistics such as Cohen's kappa and Fleiss' kappa are methods for calculating inter-rater reliability.
In differential geometry, the curvature of a curve is given by κ.
In graph theory, the connectivity of a graph is given by κ.
Symbol Lowercase (κ) Mathematics and statistics In mathematics, the kappa curve is named after this letter the tangents of this curve were first calculated by Isaac Barrow in the 17th century. The cursive form ϰ is generally a simple font variant of lower-case kappa, but it is encoded separately in Unicode for occasions where it is used as a separate symbol in math and science. All formal modern romanizations of Greek now use the letter "k", however. Greek proper names and placenames containing kappa are often written in English with "c" due to the Romans' transliterations into the Latin alphabet: Constantinople, Corinth, Crete. Letters that arose from kappa include the Roman K and Cyrillic К. It was derived from the Phoenician letter kaph. In the system of Greek numerals, Kʹ has a value of 20. Kappa / ˈ k æ p ə/ (uppercase Κ, lowercase κ or cursive ϰ Greek: κάππα, káppa) is the 10th letter of the Greek alphabet, used to represent the sound in Ancient and Modern Greek. Greek word καί written with a handwritten variant of kappa, from the Byzantine period