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| | exponent | (อิคซฺโพ'เนินทฺ) n. ผู้อธิบาย, ผู้ชี้แจง, สิ่งที่อธิบาย, ตัวแทน, แบบฉบับ, สัญลักษณ์, ผู้สนับสนุน, เลขกำลังที่อยู่เหนือสัญลักษณ์, Syn. spokeswoman | | exponential | (เอคซฺโพเนน'เชิล) adj. เกี่ยวกับเลขกำลังที่อยู่เหนือสัญลักษณ์ |
| | exponent | (n) ผู้ชี้แจง, ผู้อธิบาย, ตัวแทน, แบบอย่าง, แบบฉบับ, สัญลักษณ์ |
| | exponent | เลขชี้กำลัง [คอมพิวเตอร์ ๑๙ มิ.ย. ๒๕๔๔] | | exponent | เลขชี้กำลัง [คณิตศาสตร์๑๙ ก.ค. ๒๕๔๗] |
| | exponent | เลขชี้กำลัง, ตัวเลขที่เขียนไว้ด้านบนขวาของจำนวนใด ๆ และใช้แสดงกำลังของจำนวนนั้น เช่น จำนวน 53 มี 3 เป็นเลขชี้กำลัง และ 5 เป็นฐาน [พจนานุกรมศัพท์ สสวท.] |
| | | | เลขชี้กำลัง | (n) exponent, Thai Definition: จำนวนเต็มหรือจำนวนตรรกยะที่ใช้ยกกำลังจำนวนจริง, Notes: (คณิตศาสตร์) |
| | | | | Exponent | n. [ L. exponens, -entis, p. pr. of exponere to put out, set forth, expose. See Expound. ] 1. (Alg.) A number, letter, or any quantity written on the right hand of and above another quantity, and denoting how many times the latter is repeated as a factor to produce the power indicated; thus a2 denotes the second power, and ax the xth power, of a (2 and x being the exponents). A fractional exponent, or index, is used to denote the root of a quantity. Thus, a1/3 denotes the third or cube root of a. [ 1913 Webster ] 2. One who, or that which, stands as an index or representative; as, the leader of a party is the exponent of its principles. [ 1913 Webster ] 3. one who explains, expounds, or interprets. [ PJC ]
Exponent of a ratio, the quotient arising when the antecedent is divided by the consequent; thus, 6 is the exponent of the ratio of 30 to 5. [ R. ] [ 1913 Webster ]
| | Exponential | a. [ Cf. F. exponentiel. ] 1. Pertaining to exponents; involving variable exponents; as, an exponential expression; exponential calculus; an exponential function. [ 1913 Webster ] 2. changing over time in an exponential manner, i. e. increasing or decreasing by a fixed ratio for each unit of time; as, exponential growth; exponential decay. [ PJC ] ☞
Exponential growth is characteristic of bacteria and other living populations in circumstances where the conditions of growth are favorable, and all required nutrients are plentiful. For example, the bacterium Escherichia coli in rich media may double in number every 20 minutes until one of the nutrients becomes exhausted or waste products begin to inhibit growth. Many fascinating thought experiments are proposed on the theme of exponential growth. One may calculate, for example how long it would take the progeny of one Escherichia coli to equal the mass of the known universe if it multiplied unimpeded at such a rate. The answer, assuming the equivalent of 1080 hydrogen atoms in the universe, is less than three days. Exponential increases in a quantity can be surprising, and this principle is often used by banks to make investment at a certain rate of interest seem to be very profitable over time.
Exponential decay is exhibited by decay of radioactive materials and some chemical reactions (first order reactions), in which one-half of the initial quantity of radioactive element (or chemical substance) is lost for each lapse of a characteristic time called the half-life. [ PJC ]
Exponential curve, a curve whose nature is defined by means of an exponential equation. --
Exponential equation, an equation which contains an exponential quantity, or in which the unknown quantity enters as an exponent. --
Exponential quantity (Math.), a quantity whose exponent is unknown or variable, as ax. --
Exponential series, a series derived from the development of exponential equations or quantities. [ 1913 Webster ]
| | exponentiation | n. the process of raising a quantity to some assigned power.
Syn. -- involution. [ WordNet 1.5 ] |
| | | | 底 | [てい, tei] (n) (1) base (logarithmic, exponential, number system); radix; (2) base (triangle, cone, cylinder, etc.); (3) (arch) type; kind; extent; degree #5,288 [Add to Longdo] | | 指数 | [しすう, shisuu] (n) index; index number; exponent (e.g. in floating-point representation); characteristic; (P) #6,019 [Add to Longdo] | | べき乗打切り待機法 | [べきのりうちきりたいきほう, bekinoriuchikiritaikihou] (n) { comp } truncated binary exponential back-off [Add to Longdo] | | 鏡面反射指数 | [きょうめんはんしゃしすう, kyoumenhanshashisuu] (n) { comp } specular exponent [Add to Longdo] | | 光集中指数 | [ひかりしゅうちゅうしすう, hikarishuuchuushisuu] (n) { comp } concentration exponent [Add to Longdo] | | 指数演算子 | [しすうえんざんし, shisuuenzanshi] (n) { comp } exponential operator [Add to Longdo] | | 指数関数 | [しすうかんすう, shisuukansuu] (n) exponential function; exponentiation function [Add to Longdo] | | 指数的 | [しすうてき, shisuuteki] (adj-na) { comp } exponential [Add to Longdo] | | 指数的成長 | [しすうてきせいちょう, shisuutekiseichou] (n) { comp } exponential growth [Add to Longdo] | | 指数部 | [しすうぶ, shisuubu] (n) exponent portion; characteristic (e.g. in floating-point representation) [Add to Longdo] |
| | べき乗打切り待機法 | [べきのりうちきりたいきほう, bekinoriuchikiritaikihou] truncated binary exponential back-off [Add to Longdo] | | 鏡面反射指数 | [きょうめんはんしゃしすう, kyoumenhanshashisuu] specular exponent [Add to Longdo] | | 光集中指数 | [ひかりしゅうちゅうしすう, hikarishuuchuushisuu] concentration exponent [Add to Longdo] | | 指数 | [しすう, shisuu] exponent (e.g. in floating-point representation) [Add to Longdo] | | 指数演算子 | [ひすうえんざんし, hisuuenzanshi] exponential operator [Add to Longdo] | | 指数関数 | [しすうかんすう, shisuukansuu] exponentiation function [Add to Longdo] | | 指数的 | [しすうてき, shisuuteki] exponential [Add to Longdo] | | 指数的成長 | [しすうてきせいちょう, shisuutekiseichou] exponential growth [Add to Longdo] | | 指数分布 | [しすうぶんぷ, shisuubunpu] exponential distribution [Add to Longdo] | | 冪乗演算子 | [べきじょうえんざんし, bekijouenzanshi] exponential operator (**) [Add to Longdo] |
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