- substitution of variables
- мат. замена переменных
English-russian dictionary of physics. 2013.
substitution of variables
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Substitution of variables — In mathematics, substitution of variables (also called variable substitution or coordinate transformation) refers to the substitution of certain variables with other variables. Though the study of how variable substitutions affect a certain… … Wikipedia
Substitution uniforme — Instanciation universelle En logique, l instanciation universelle (également appelée Dictum de omni) est une règle d inférence qui permet, à partir d une vérité sur l ensemble des membres d une classe d entités, d inférer une vérité sur une… … Wikipédia en Français
Substitution reaction — In a substitution reaction, a functional group in a particular chemical compound is replaced by another group.[1][2] In organic chemistry, the electrophilic and nucleophilic substitution reactions are of prime importance. Organic substitution… … Wikipedia
Substitution instance — In propositional logic, a substitution instance of a propositional formula is a second formula obtained by replacing symbols of the original formula by other formulas. A key fact is that any substitution of a tautology is again a tautology.… … Wikipedia
substitution instance — noun : a statement in logic derived from a statement form by substitution of constants for variables … Useful english dictionary
Integration by substitution — Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus Derivative Change of variables Implicit differentiation Taylor s theorem Related rates … Wikipedia
Explicit substitution — In computer science, Explicit substitution is an umbrella term used to describe several calculi based on the Lambda calculus that pay special attention to the formalization of the process of substitution. The concept of explicit substitutions has … Wikipedia
Change of variables (PDE) — Topics in Calculus Fundamental theorem Limits of functions Continuity Mean value theorem Differential calculus Derivative Change of variables Implicit differentiation Taylor s theorem Related rates … Wikipedia
Sum of normally distributed random variables — In probability theory, if X and Y are independent random variables that are normally distributed, then X + Y is also normally distributed; i.e. if :X sim N(mu, sigma^2),and :Y sim N( u, au^2),and X and Y are independent, then:Z = X + Y sim N(mu + … Wikipedia
Change of variables — In mathematics, a change of variables is a basic technique used to simplify problems in which the original variables are replaced with new ones; the new and old variables being related in some specified way. The intent is that the problem… … Wikipedia
Free variables and bound variables — In mathematics, and in other disciplines involving formal languages, including mathematical logic and computer science, a free variable is a notation that specifies places in an expression where substitution may take place. The idea is related to … Wikipedia
