Deduction of “The Law of 72” : How many years to receive interest equal to the amount of the principal deposit

宇部工業高等専門学校研究報告 Volume 57 Page 29-31

published_at 2011-03

UN20057000005.pdf

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Title

「７２の法則」の導出 : 複利で元利合計が２倍になる年数の目安を得る演習問題として

Deduction of “The Law of 72” : How many years to receive interest equal to the amount of the principal deposit

Creators Matsuura Toshiharu

Source Identifiers

Creator Keywords

Law of 72 approximation natural logarithm power series Maclaurin expansion

“The Law of 72” is deduced. “The Law of 72” reveals to us the years to receive interest equal to the amount of the principal deposit. We applied natural logarithm, approximation, power series, integral and Maclaurin expansion.

Languages jpn

Resource Type departmental bulletin paper

Publishers 宇部工業高等専門学校

Date Issued 2011-03

File Version Version of Record

Access Rights open access

Relations

[ISSN]0386-4359

[NCID]AN00019833