翻訳と辞書 Words near each other ・ Acculturation ・ Acculturation Model ・ Accum ・ Accuminulia ・ Accuminulia buscki ・ Accuminulia longiphallus ・ Accumoli ・ Accumulated Campaign Service Medal ・ Accumulated cyclone energy ・ Accumulated other comprehensive income ・ Accumulated thermal unit ・ Accumulatio ・ Accumulation ・ Accumulation and maintenance trust ・ Accumulation by dispossession ・ Accumulation function ・ Accumulation zone ・ Accumulation/distribution index ・ Accumulative roll bonding ・ Accumulator ・ Accumulator (computing) ・ Accumulator (cryptography) ・ Accumulator (energy) ・ Accumulator (structured product) ・ Accumulator 1 ・ Accumulatoren-Fabrik AFA ・ Accumuli Security ・ Accuphase ・ Accuquote ・ Accuracy (company) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Accumulation function ： ウィキペディア英語版 Accumulation function The accumulation function ''a''(''t'') is a function defined in terms of time ''t'' expressing the ratio of the value at time ''t'' (future value) and the initial investment (present value). It is used in interest theory. Thus ''a''(0)=1 and the value at time ''t'' is given by: :$A(t)\; =\; k\; \backslash cdot\; a(t)$. where the initial investment is ''k''. Examples: *simple interest: $a(t)=1+t\; \backslash cdot\; i$ *compound interest: $a(t)=(1+i)^t$ *simple discount: $a(t)\; =\; (1-d\backslash cdot\; t)^$ *compound discount: $a(t)\; =\; (1-d)^$ In the case of a positive rate of return, as in the case of interest, the accumulation function is an increasing function. ==Variable rate of return== The logarithmic or continuously compounded return, sometimes called force of interest, is a function of time defined as follows: :$\backslash delta\_=\backslash frac\backslash ,$ which is the rate of change with time of the natural logarithm of the accumulation function. Conversely: :$a(t)=e^$ reducing to :$a(t)=e^$ for constant $\backslash delta$. The effective annual percentage rate at any time is: :$r(t)\; =\; e^\; -\; 1$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Accumulation function」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.