A transformation, described by Wadsworth in 1971, which ensures that subexpressions in a function body which do not depend on the function’s arguments are only evaluated once. E.g. each time the function
f x = x + sqrt 4
is applied, (sqrt 4) will be evaluated. Since (sqrt 4) does not depend on x, we could transform this to:
f x = x + sqrt4 sqrt4 = sqrt 4
We have replaced the dynamically created (sqrt 4) with a single shared constant which, in a graph reduction system, will be evaluated the first time it is needed and then updated with its value.
See also fully lazy lambda lifting, let floating.
- Fully qualified domain name
networking (FQDN) The full name of a system, consisting of its local hostname and its domain name, including a top-level domain (tld). For example, “venera” is a hostname and “venera.isi.edu” is an FQDN. An FQDN should be sufficient to determine a unique Internet address for any host on the Internet. This process, called “name resolution”, […]
- Fully shielded
adjective fully shielded luminaires emit no direct uplight, but have no limitation on the intensity in the region between 80° and 90°; providing internal and/or external shields and louvers to prevent brightness from lamps, reflectors, refractors and lenses from causing glare at normal viewing angles
[foo l-mer] /ˈfʊl mər/ noun 1. any of certain oceanic birds of the petrel family, especially Fulmarus glacialis, a gull-like Arctic species. /ˈfʊlmə/ noun 1. any heavily built short-tailed oceanic bird of the genus Fulmarus and related genera, of polar regions: family Procellariidae, order Procellariiformes (petrels)
[fuhl-muh-nuh nt] /ˈfʌl mə nənt/ adjective 1. occurring suddenly and with great intensity or severity; . 2. Pathology. developing or progressing suddenly: fulminant plague. /ˈfʌlmɪnənt; ˈfʊl-/ adjective 1. sudden and violent; fulminating 2. (pathol) (of pain) sudden and sharp; piercing adj. c.1600, from French fulminant or directly from Latin fulminantem (nominative fulminans), present participle of […]