infinit yとは 意味・読み方・使い方
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意味・対訳 無限、無限大、無限遠、無数、無量
infinit yの |
infinit yの学習レベル | レベル:9英検:1級以上の単語学校レベル:大学院以上の水準TOEIC® L&Rスコア:950点以上の単語 |
研究社 新英和中辞典での「infinit y」の意味 |
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数学のほかの用語一覧
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Wiktionary英語版での「infinit y」の意味 |
infinity
語源
From Middle English infinite, from Old French infinité, from Latin infinitas (“unlimitedness”), from negative prefix in- (“not”), + finis (“end”), + noun of state suffix -tas.
名詞
infinity (countable かつ uncountable, 複数形 infinities)
- (uncountable) endlessness, unlimitedness, absence of a beginning, end or limits to size.
- (countable, mathematics) A number that has an infinite numerical value that cannot be counted.
- 2012 January 1, Michael Riordan, “Tackling Infinity”, in American Scientist[1], volume 100, number 1, page 86:
- Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.
- (countable, topology, mathematical analysis) An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.
- (uncountable) A number which is very large compared to some characteristic number. For example, in optics, an object which is much further away than the focal length of a lens is said to be "at infinity", as the distance of the image from the lens varies very little as the distance increases further.
- (countable, uncountable) The symbol ∞.
使用する際の注意点
In mathematics there are several different infinities; see transfinite.
反意語
派生語
- axiom of infinity
- directed infinity
- infinity box
- infinity pool
- infinity scarf
- infinity shot
- infinity sign
- infinity symbol
- infinity transmitter
- infinity-edge pool
- null infinity
- point at infinity
- zero one infinity rule
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