differential action
1Differential (mechanical device) — For other uses, see Differential. A cutaway view of an automotive final drive unit which contains the differential Input …
2Differential execution — refers to a method of executing a computer subroutine (See control flow) in such a way that differences from prior executions can be detected and acted upon. If the subroutine is one that walks through a data structure, differential execution can …
3Differential — Dif fer*en tial, n. 1. (Math.) An increment, usually an indefinitely small one, which is given to a variable quantity. [1913 Webster] Note: According to the more modern writers upon the differential and integral calculus, if two or more… …
4Differential Education Achievement — Differential Educational Achievement (DEA) is a sociological term often given to a concept that disagrees with some of the functionalist views on education. Many functionalists believe that an individual s academic success depends completely upon …
5Action (physics) — In physics, the action is a particular quantity in a physical system that can be used to describe its operation. Action is an alternative to differential equations. The action is not necessarily the same for different types of systems.The action… …
6Differential invariant — In mathematics, a differential invariant is an invariant for the action of a Lie group on a space that involves the derivatives of graphs of functions in the space. Differential invariants are fundamental in projective differential geometry, and… …
7Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …
8Differential geometry of curves — This article considers only curves in Euclidean space. Most of the notions presented here have analogues for curves in Riemannian and pseudo Riemannian manifolds. For a discussion of curves in an arbitrary topological space, see the main article… …
9Differential analyser — This article is about analogue differential analysers. For the digital implementation, see Digital Differential Analyzer. Thomson disc and sphere analyser for studying tides The differential analyser is a mechanical analogue computer designed to… …
10Differential equation — Not to be confused with Difference equation. Visualization of heat transfer in a pump casing, created by solving the heat equation. Heat is being generated internally in the casing and being cooled at the boundary, providing a steady state… …
