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研究與教學中心
科學教育中心
科學教育月刊
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科學教育月刊
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銀行點金術、利滾利與e 的對話
(
國立臺灣師範大學科學教育中心
,
2017-11-??
)
謝其政
;
謝祥化
;
Chi-Cheng Hsieh, Hsiang-Hua Hsieh
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錢經過銀行體系的運作,利用無窮等比級數及各個國家之央行所訂定的存款準備率,銀行便可點石成金。將錢存放銀行,或向銀行借錢都會衍生利息議題,決定利息的多少除利率外,採單利、複利計算、複利週期是每年、每月、每日或分分秒秒,都會影響利息的多寡。如果將複利週期縮短到趨近於0 時,利息又與歐拉數e 巧妙連結。僅使用數學工具中等比級數之技巧,便可把看似複雜的複利問題梳理清楚。當你能運用簡單的數學揭開複利計算之面紗時,數學之美沉浸於生活之中。
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