**Rational trigonometry** — is a recently introduced approach to trigonometry that eschews all transcendental functions (such as sine and cosine) and all proportional measurements of angles. In place of angles, it characterizes the separation between lines by a quantity… … Wikipedia

**Rational Emotive Behavior Therapy** — (REBT) is a comprehensive, active directive, philosophically and empirically based psychotherapy which focuses on resolving emotional and behavioral problems and disturbances and enabling people to lead happier and more fulfilling lives. REBT was … Wikipedia

**Rational reconstruction** — is a philosophical and linguistic method that systematically translates intuitive knowledge of rules into a logical form. [ * Habermas, Jurgen. (1979). Communication and the Evolution of Society. Toronto: Beacon Press.] In other words, it is an… … Wikipedia

**Rational selfishness** — Rational selfishness, a term generally related to Ayn Rand s Objectivist philosophy, refers to a person s efforts to look after their own well being, to cultivate the self and achieve goals for the good of the self. This is, in essence, the basic … Wikipedia

**point of view - view - opinion** — ◊ point of view When you are considering one aspect of a situation, you can say that you are considering it from a particular point of view. From a practical point of view it is quite irrelevant. From the commercial point of view they have little … Useful english dictionary

**Rational surface** — In algebraic geometry, a branch of mathematics, a rational surface is a surface birationally equivalent to the projective plane, or in other words a rational variety of dimension two. Rational surfaces are the simplest of the 10 or so classes of… … Wikipedia

**Rational choice theory** — This article is about a theory of economics. For Rational Choice Theory as applied to criminology, see Rational choice theory (criminology). Economics … Wikipedia

**Rational motion** — In kinematics, the motion of a rigid body is defined as a continuous set of displacements. One parameter motions can be definedas a continuous displacement of moving object with respect to a fixed frame in Euclidean three space ( E 3), where the… … Wikipedia

**Rational number** — In mathematics, a rational number is any number that can be expressed as the quotient or fraction a/b of two integers, with the denominator b not equal to zero. Since b may be equal to 1, every integer is a rational number. The set of all… … Wikipedia

**Rational singularity** — In mathematics, more particularly in the field of algebraic geometry, a scheme X has rational singularities, if it is normal, of finite type over a field of characteristic zero, and there exists a proper birational map :f : Y ightarrow X from a… … Wikipedia