**extended real number system** — noun The real number system adjoined with two extra symbols: ∞ and minus;∞, inheriting the ordering of the real number system, and defining minus;∞ to be less than any real number, and ∞ to be larger than any real number … Wiktionary

**Number system** — This article is about different sets of numbers. For different methods of expressing numbers with symbols, see numeral system. In mathematics, a number system is a set of numbers, (in the broadest sense of the word), together with one or more… … Wikipedia

**Real number** — For the real numbers used in descriptive set theory, see Baire space (set theory). For the computing datatype, see Floating point number. A symbol of the set of real numbers … Wikipedia

**real number line** — noun A geometric representation of the real number system. Syn: real line … Wiktionary

**extended real number system** — Math. the set of all real numbers with the points plus infinity and minus infinity added. * * * … Universalium

**extended real number system** — Math. the set of all real numbers with the points plus infinity and minus infinity added … Useful english dictionary

**Extended real number line** — Positive infinity redirects here. For the band, see Positive Infinity. In mathematics, the affinely extended real number system is obtained from the real number system R by adding two elements: +∞ and −∞ (read as positive infinity and negative… … Wikipedia

**Logarithmic Number System** — The Logarithmic Number System (LNS) is an arithmetic system used for representing real numbers in computer and digital hardware.It was first introduced in 1975 by Swartzlander and Alexopoulos [] A fabricated prototype of the processor, which has… … Wikipedia

**Number** — For other uses, see Numbers (disambiguation). A number is a mathematical object used to count and measure. In mathematics, the definition of number has been extended over the years to include such numbers as zero, negative numbers, rational… … Wikipedia

**Real projective line** — In real analysis, the real projective line (also called the one point compactification of the real line, or the projectively extended real numbers ), is the set mathbb{R}cup{infty}, also denoted by widehat{mathbb{R and by mathbb{R}P^1.The symbol… … Wikipedia