Form+of+expression
41Regular expression — In computing, a regular expression provides a concise and flexible means for matching (specifying and recognizing) strings of text, such as particular characters, words, or patterns of characters. Abbreviations for regular expression include… …
42Closed-form expression — Closed formula redirects here. For closed formula in the sense of a logic formula with no free variables, see Sentence (mathematical logic). In mathematics, an expression is said to be a closed form expression if it can be expressed analytically… …
43Backus-Naur form — Saltar a navegación, búsqueda El Backus Naur form (BNF) (también conocido como Backus Naur formalism, Backus normal form o Panini Backus Form) es una metasintaxis usada para expresar gramáticas libres de contexto: es decir, una manera formal de… …
44Parsing expression grammar — A parsing expression grammar, or PEG, is a type of analytic formal grammar that describes a formal language in terms of a set of rules for recognizing strings in the language. A parsing expression grammar essentially represents a recursive… …
45Glossary of gene expression terms — See also: gene expression, List of Glossaries, List of Natural Sciences Glossaries A*Activator protein that binds to an enhancer (or activator binding region) and activates transcription from nearby promoter.*A DNA a form of DNA found at low… …
46Canonical form (Boolean algebra) — In Boolean algebra, any Boolean function can be expressed in a canonical form using the dual concepts of minterms and maxterms. Minterms are called products because they are the logical AND of a set of variables, and maxterms are called sums… …
47L-form bacteria — Transmission electron micrograph of L form Bacillus subtilis. The cells lack the electron dense cell wall of normal bacteria. Scale bar is 500 nanometers. L form bacteria, also known as L phase bacteria, L phase variants, and cell wall deficient… …
48Jordan normal form — In linear algebra, a Jordan normal form (often called Jordan canonical form)[1] of a linear operator on a finite dimensional vector space is an upper triangular matrix of a particular form called Jordan matrix, representing the operator on some… …
49Gene expression profiling — Heat maps of gene expression values show how experimental conditions influenced production (expression) of mRNA for a set of genes. Green indicates reduced expression. Cluster analysis has placed a group of down regulated genes in the upper left… …
50Extraordinary form of the Roman Rite — Ite missa est sung by the deacon at a Solemn Mass. An extraordinary form of the Roman Rite is a phrase used in Pope Benedict XVI s motu proprio Summorum Pontificum to describe the liturgy of the 1962 Roman Missal, widely referred to as the… …
