J (disambiguation)

From Wikipedia, the free encyclopedia

J, or j, is the tenth letter of the English alphabet.

J may also refer to:

Astronomy[edit]

Computing[edit]

Genetics and medicine[edit]

Mathematics[edit]

  • J, symbol used to denote the Bessel function
  • j, used as the symbol for the imaginary unit () in fields where i is used for a different purpose (such as electric current)
  • j and j2 (or ) are also used for the complex cube roots of unity
  • j, a number with the property j 2 = +1, used in the definition of the split-complex numbers
  • j, the second imaginary unit of a quaternion
  • j, an index variable in a matrix
  • The j-invariant, a modular function

Physics[edit]

Music[edit]

Albums[edit]

Songs[edit]

Film and television[edit]

Writers[edit]

Transport[edit]

Other uses[edit]

See also[edit]