logic modulus
41Frequency synthesizer — A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed timebase or oscillator. They are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie… …
42De Broglie–Bohm theory — Quantum mechanics Uncertainty principle …
43Nanoelectromechanical system — Part of a series of articles on Nanoelectronics Single molecule electronics …
44Модель (в науке) — Модель (франц. modèle, итал. modello, от лат. modulus мера, мерило, образец, норма), 1) образец, служащий эталоном (стандартом) для серийного ли массового воспроизведения (М. автомобиля, М. одежды и т. п.), а также тип , марка какого либо… …
45Computable number — In mathematics, particularly theoretical computer science and mathematical logic, the computable numbers, also known as the recursive numbers or the computable reals, are the real numbers that can be computed to within any desired precision by a… …
46Pythagorean theorem — See also: Pythagorean trigonometric identity The Pythagorean theorem: The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c) …
47Quantum mechanics — For a generally accessible and less technical introduction to the topic, see Introduction to quantum mechanics. Quantum mechanics …
48Quartz clock — A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more… …
49Existence theorem — In mathematics, an existence theorem is a theorem with a statement beginning there exist(s) .. , or more generally for all x, y, ... there exist(s) ... . That is, in more formal terms of symbolic logic, it is a theorem with a statement involving… …
50Data validation — In computer science, data validation is the process of ensuring that a program operates on clean, correct and useful data. It uses routines, often called validation rules or check routines , that check for correctness, meaningfulness, and… …
