exponential

FREQ #39322

a. 指数的 n. 指数 [计] 指数

发音

UK /ˌɛk.spəˈnɛn.t͡ʃəl/
UK /ˌɛk.spəʊˈnɛn.tʃəl/
CA /ˌɛk.spəˈnɛn.t͡ʃəl/
US /ˌɛk.spəˈnɛn.t͡ʃəl/
CA /ˌɛk.spoʊˈnɛn.t͡ʃəl/
US /ˌɛk.spoʊˈnɛn.t͡ʃəl/
AU /ˌek.spəˈnen.t͡ʃəl/
NZ /ˌek.spəˈnen.t͡ʃəl/

词形变化

exponentials 复数 exponentials

别名

exptl

释义与例句

n.
  1. 1.

    Any function that has an exponent as an independent variable.

    数学
adj.
  1. 1.

    Expressed in terms of an exponent (power of a base), the base often being 10 or e.

    数学

    In base-10 exponential form, 1,000,000 is written as 10⁶.

    If not otherwise specified, "the" exponential function is normally understood to mean eˣ.

  2. 2.

    Characterised by a rate of change that is proportional to the value of the varying quantity, or, equivalently, by a doubling or halving over successive fixed intervals of time or other parameter, described as exponential growth or exponential decay.

    数学

    There were two deaths on Monday, four on Tuesday, and eight on Wednesday. The rate of increase seems exponential.

  3. 3.

    Characterised by a very rapid rate of change, especially increase, or merely a very large amount or degree.

    Near-synonyms: extreme, huge

    There's been an exponential rise in the number of crimes reported this year, compared to last year.

词汇关系

名词

同义词 1

exponential function

上位词 5

map function mapping mathematical function single-valued function

相关短语

exponential growth [经] 指数增长 exponential distribution [计] 指数分布 exponential function [计] 指数函数 [经] 指数函数 exponential growths exponential equation [计] 指数方程 exponential object exponential functions exponential distributions exponential equations exponential objects exponential decay [电] 指数衰减 exponential decays exponential generating function [计] 指数母函数 exponential smoothing [计] 指数平滑法 [经] 指数平滑法 exponential smoothings

词源

From exponent + -ial.

来源：wiktionary