sign function
31Call sign — In broadcasting and radio communications, a call sign (also known as a callsign or call letters, or abbreviated as a call, or otherwise known as a handle) is a unique designation for a transmitting station. In some countries they are used as… …
32Inverse function — In mathematics, if fnof; is a function from A to B then an inverse function for fnof; is a function in the opposite direction, from B to A , with the property that a round trip (a composition) from A to B to A (or from B to A to B ) returns each… …
33Riemann zeta function — ζ(s) in the complex plane. The color of a point s encodes the value of ζ(s): dark colors denote values close to zero and hue encodes the value s argument. The white spot at s = 1 is the pole of the zeta function; the black spots on the… …
34Traffic sign — Most countries post signage, known as traffic signs or road signs, at the side of roads to impart information to road users. Since language differences can create barriers to understanding, international signs using symbols in place of words have …
35Dollar sign — $ redirects here. For the unit of currency, see Dollar or Peso. For other uses, see $ (disambiguation). $ Dollar sign …
36Project Sign — was an official U.S. government study of unidentified flying objects (UFOs) undertaken by the United States Air Force in late 1947 and dissolved in late 1948. Formally, Project Sign came to no conclusion about UFOs [see Blum, Howard, Out There:… …
37Contact Sign — is a variety or style of language that arises from contact between a Deaf sign language and a spoken language (or the written or manually coded form of the spoken language). Contact languages also arise between different sign languages, although… …
38Contact sign — A contact sign language, or contact sign, is a variety or style of language that arises from contact between a deaf sign language and a spoken language (or the written or manually coded form of the spoken language). Contact languages also arise… …
39Bessel function — In mathematics, Bessel functions, first defined by the mathematician Daniel Bernoulli and generalized by Friedrich Bessel, are canonical solutions y(x) of Bessel s differential equation: for an arbitrary real or complex number α (the order of the …
40Cumulative distribution function — for the normal distributions in the image below …
