atom expression

См. также в других словарях:

• atom — /at euhm/, n. 1. Physics. a. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical… …   Universalium

• Ground expression — In mathematical logic, a ground term of a formal system is a term that does not contain any variables at all, and a closed term is a term that has no free variables. In first order logic all closed terms are ground terms, but in lambda calculus… …   Wikipedia

• Hydrogen atom — Stable Isotope isotope name = Hydrogen 1 isotope filename = hydrogen 1.png alternate names = protium mass number = 1 symbol = H num neutrons = 0 num protons = 1 abundance = 99.985% mass = 1.007825 spin = ½+ excess energy = 7288.969 error1 = 0.001 …   Wikipedia

• Hydrogen-like atom — A hydrogen like atom is an atom with one electron and thus is isoelectronic with hydrogen. Except for the hydrogen atom itself (which is neutral) these atoms carry the positive charge e(Z 1) , where Z is the atomic number of the atom. Examples of …   Wikipedia

• Ul'Team Atom — Pays d’origine Les Ulis,  France Genre musical Hip Hop Années d activité De 1998 à 2006 …   Wikipédia en Français

• M-expression — In computer programming, M expressions (or meta expressions) were intended to be the expressions used to write functions in the Lisp programming language. Data to be manipulated using M expressions was to be written using S expressions. M… …   Wikipedia

• S-expression — The term S expression or sexp (where S stands for symbolic) refers to a convention for representing semi structured data in human readable textual form. S expressions are probably best known for their use in the Lisp family of programming… …   Wikipedia

• To reduce an expression — Reduce Re*duce (r[ e]*d[=u]s ), v. t. [imp. & p. p. {Reduced} ( d[=u]st ),; p. pr. & vb. n. {Reducing} ( d[=u] s[i^]ng).] [L. reducere, reductum; pref. red . re , re + ducere to lead. See {Duke}, and cf. {Redoubt}, n.] 1. To bring or lead back to …   The Collaborative International Dictionary of English

• chemical formula — Expression of the composition or structure of a chemical compound. Formulas for molecules use chemical symbols with subscript numbers to show the number of atoms of each element: O2 for molecular oxygen, O3 for ozone, CH4 for methane, C6H6 for… …   Universalium

• Lisp (programming language) — Infobox programming language name = Lisp paradigm = multi paradigm: functional, procedural, reflective generation = 3GL year = 1958 designer = John McCarthy developer = Steve Russell, Timothy P. Hart, and Mike Levin latest release version =… …   Wikipedia

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium