completely defined function
51Complete set of commuting observables — In quantum mechanics, a complete set of commuting observables (CSCO) is a set of commuting operators whose eigenvalues completely specify the state of a system (Gasiorowicz 1974, p. 119). For example, in the case of the hydrogen atom, the… …
52Legendre symbol — The Legendre symbol or quadratic character is a function introduced by Adrien Marie Legendre in 1798 [A. M. Legendre Essai sur la theorie des nombres Paris 1798, p 186] during his partly successful attempt to prove the law of quadratic… …
53Natural units — In physics, natural units are physical units of measurement based only on universal physical constants. For example the elementary charge e is a natural unit of electric charge, or the speed of light c is a natural unit of speed. A purely natural …
54Perceptron — Perceptrons redirects here. For the book of that title, see Perceptrons (book). The perceptron is a type of artificial neural network invented in 1957 at the Cornell Aeronautical Laboratory by Frank Rosenblatt.[1] It can be seen as the simplest… …
55Stress (physics) — Stress is a measure of the average amount of force exerted per unit area. It is a measure of the intensity of the total internal forces acting within a body across imaginary internal surfaces, as a reaction to external applied forces and body… …
56Linear elasticity — Continuum mechanics …
57Molecular orbital theory — In chemistry, molecular orbital (MO) theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole… …
58HP 9800 series desktop computers — The HP 9800 was a family of what were initially called programmable calculators and later desktop computers made by Hewlett Packard which replaced their first HP 9100 calculator. The 9830 and its successors were true computers in the modern sense …
59Raymond Camden — is a long time contributor to the ColdFusion community. He has written many books on the subject and presents on ColdFusion topics often. His blog software, BlogCFC, is in use by numerous writers across the world and is completely free and open… …
60TRAC (programming language) — TRAC (for Text Reckoning And Compiling) is a programming language developed in the early 1960s by Calvin Mooers (1919 1994). It was one of three first languages recommended by Ted Nelson in Computer Lib .TRAC is a purely text based language a… …
