expression

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expression

1. communication of emotion through music, painting, etc.
2. Maths a variable, function, or some combination of constants, variables, or functions
3. Genetics the effect of a particular gene on the phenotype

expression

[ik′spresh·ən]
(chemical engineering)
Separation of liquid from a two-phase solid-liquid system by compression under conditions that permit liquid to escape while the solid is retained between the compressing surfaces. Also known as mechanical expression.
(computer science)
A mathematical or logical statement written in a source language, consisting of a collection of operands connected by operations in a logical manner.

expression

(programming)
Any piece of program code in a high-level language which, when (if) its execution terminates, returns a value. In most programming languages, expressions consist of constants, variables, operators, functions, and parentheses. The operators and functions may be built-in or user defined. Languages differ on how expressions of different types may be combined - with some combination of explicit casts and implicit coercions.

The syntax of expressions generally follows conventional mathematical notation, though some languages such as Lisp or Forth have their own idiosyncratic syntax.

expression

(1) See Expression Studio.

(2) In programming, a line of source code that returns a value when executed. An expression can comprise any combination of variables, values, operators and functions. For example, a=b+c and price=2*cost are expressions. The more complicated expression (strlen(text_string)*2) is a C example that uses a string length function and returns a value that is twice the number of characters in the string of text. See regular expression.
References in periodicals archive ?
The New Jersey Supreme Court, in a brief per curiam opinion, offered little that was novel regarding the breadth of expressional liberties.
Due to the fact that an expressional intent behind speech exists and a functional element so entwined that American citizens have been blessed with protections against government regulations on expression.
The exhibition took the pride in being the very first of its kind in the country which was meant to promote an insightful look into social problems that otherwise, plague our societies through the tongue of expressional art with a touch of technical setting.
Expression of Cyp17 gene was significantly decreased with nandrolone feeding at low dose, while expressional level of Cyp17 mRNA was not affected by high nandrolone feeding treatment, compared with that of control group (Figure 3A).
TABLE 74 GLOBAL EXPRESSIONAL PROTEOMICS MARKET BY PRODUCT, THROUGH 2014 ($ MILLIONS)
DPCs excised from in vivo scalp hair follicles after treatment with 10% EGCG showed almost 3-fold P-Erk expressional increases versus vehicle-treated controls (Fig.
In this essay, I describe how my PhD project 'evolved' from the study of jumping genes and regulation of a single gene, Cyp6g1, to the expressional characterisation of the entire family of genes of which Cyp6g1 is a member.
2) the extent and nature of the public's invitation to use that property, and (3) the purpose of the expressional activity undertaken upon such property in relation to both the private and public use of the property.
Tissue array technologies are being developed for genome-scale expressional and clinical cancer research (50).
Shatford distinguishes Panofsky's factual and expressional meaning as determining what the picture is of and what it is about.
The Third Eye Exhibition, through the tongue of expressional art with a touch of technical setting, promoted an insightful look into the social problems that plague our society and communities worldwide.