left recursion

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• Left recursion — In computer science, left recursion is a special case of recursion. In terms of context free grammar, a non terminal r is left recursive if the left most symbol in any of r’s ‘alternatives’ either immediately (direct left recursive) or through… …   Wikipedia

• Recursion (computer science) — Recursion in computer science is a way of thinking about and solving problems. It is, in fact, one of the central ideas of computer science. [cite book last = Epp first = Susanna title = Discrete Mathematics with Applications year=1995… …   Wikipedia

• Recursion theory — Recursion theory, also called computability theory, is a branch of mathematical logic that originated in the 1930s with the study of computable functions and Turing degrees. The field has grown to include the study of generalized computability… …   Wikipedia

• Recursión de Levinson — Saltar a navegación, búsqueda La recursión de Levinson o de Levinson Durbin es un algoritmo del álgebra lineal para calcular en forma recursiva la solución de una ecuación que involucra una matriz de Toeplitz. El costo computacional es de Θ(n2),… …   Wikipedia Español

• Anonymous recursion — In computer science, anonymous recursion is a recursion technique that uses anonymous functions. Construction Suppose that f is an n argument recursive function defined in terms of itself:: f(x 1, x 2, dots, x n) := mbox{expression in terms of }… …   Wikipedia

• Levinson recursion — or Levinson Durbin recursion is a procedure in linear algebra to recursively calculate the solution to an equation involving a Toeplitz matrix. The algorithm runs in Θ(n2) time, which is a strong improvement over Gauss Jordan elimination, which… …   Wikipedia

• Panjer recursion — The Panjer recursion is an algorithm to compute the probability distribution of a compound random variable: S = sum {i=1}^N X i.,.where both N, and X i, are stochastic and of a special type. It was introduced in a paper of Harry Panjer [ cite… …   Wikipedia

• Top-down parsing — is a strategy of analyzing unknown data relationships by hypothesizing general parse tree structures and then considering whether the known fundamental structures are compatible with the hypothesis. It occurs in the analysis of both natural… …   Wikipedia

• Parser Combinator — In mathematics and functional programming, Higher Order functions (HOF) are defined as the functions that can take functions as their input and can also produce functions as their output. The use of a HOF as an infix operator in a function… …   Wikipedia

• Parser combinator — In functional programming, a parser combinator is a higher order function which accepts several parsers as input and returns a new parser as its output. In this context, a parser is a function accepting strings as input and returning some… …   Wikipedia

• Memoization — Not to be confused with Memorization. In computing, memoization is an optimization technique used primarily to speed up computer programs by having function calls avoid repeating the calculation of results for previously processed inputs.… …   Wikipedia