inversion sign
21Molecular orbital — See also: Molecular orbital theory In chemistry, a molecular orbital (or MO) is a mathematical function describing the wave like behavior of an electron in a molecule. This function can be used to calculate chemical and physical properties such… …
22Hyperbola — This article is about a geometrical curve, a conic section. For the term used in rhetoric, see Hyperbole …
23Figured bass — Melody from the opening of Henry Purcell s Thy Hand, Belinda , Dido and Aeneas (1689) with figured bass below (   …
24Objet volant non identifié — « OVNI » redirige ici. Pour les autres significations, voir OVNI (homonymie) et UFO. Un objet volant non identifié, généralement désigné sous l acronyme ovni, désigne un phénomène aérien qu un ou plusieurs témoins affirment avoir… …
25Signed zero — is zero with an associated sign. In ordinary arithmetic, −0 = +0 = 0. However, in computing, some number representations allow for the existence of two zeros, often denoted by −0 (negative zero) and +0 (positive zero). This… …
26Dipole — This article is about the electromagnetic phenomenon. For other uses, see dipole (disambiguation). The Earth s magnetic field, approximated as a magnetic dipole. However, the N and S (north and south) poles are labeled here geographically, which… …
27Surreal number — In mathematics, the surreal number system is an arithmetic continuum containing the real numbers as well as infinite and infinitesimal numbers, respectively larger or smaller in absolute value than any positive real number. The surreals share… …
28Antenna (radio) — Whip antenna on car …
29analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… …
30Invert — 1) To turn inward. To invert the foot is to move its forepart toward the midline of the body. 2) To turn upside down or inside out. Inversion of the nipple can be normal or be a sign of an underlying tumor. 3) To reverse in position or order. A… …
