counting number
31Counting sheep — Sheep on a paddock Counting Sheep redirects here. For the Collin Raye album, see Counting Sheep (album). Counting sheep is a mental exercise used in some cultures as a means of lulling oneself to sleep. In most depictions of the activity, the… …
32Counting efficiency — The counting efficiency is the ratio between the number of particles or photons counted with a radiation counter and the number of particles or photons of the same type and energy emitted by the radiation source (IUPAC Compendium of Chemical… …
33counting — It has long been considered unlucky to count things too accurately it is tempting fate to announce (even to yourself) the exact number in case it makes you lose some. Don t count your chickens before they are hatched is an oft quoted maxim… …
34Counting — Count Count (kount), v. t. [imp. & p. p. {Counted}; p. pr. & vb. n. {Counting}.] [OF. conter, and later (etymological spelling) compter, in modern French thus distinguished; conter to relate (cf. {Recount}, {Account}), compter to count; fr. L.… …
35number theory — Math. the study of integers and their relation to one another. Also called theory of numbers. [1910 15] * * * Branch of mathematics concerned with properties of and relations among integers. It is a popular subject among amateur mathematicians… …
36number game — Introduction any of various puzzles and games that involve aspects of mathematics. Mathematical recreations comprise puzzles and games that vary from naive amusements to sophisticated problems, some of which have never been solved.… …
37counting frame — noun also counting rail : a frame strung with movable beads on wires and used in teaching elementary number concepts : abacus * * * counting frame noun A frame having rows of movable beads, used for elementary counting, an abacus • • • Main Entry …
38number — /ˈnʌmbə / (say numbuh) noun 1. the sum, total, count, or aggregate of a collection of units or any generalisation of this concept. 2. → integer. 3. → numeral. 4. (plural) → arithmetic. 5. the particular numeral assigned to anything in order to… …
39number — n. & v. n. 1 a an arithmetical value representing a particular quantity and used in counting and making calculations. b a word, symbol, or figure representing this; a numeral. c an arithmetical value showing position in a series esp. for… …
40Number line — For other uses, see Number line (disambiguation). In basic mathematics, a number line is a picture of a straight line on which every point is assumed to correspond to a real number and every real number to a point.[1] Often the integers are shown …
