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标题: 利息问题的计算求教(prep里的) [打印本页]

作者: Jianke311    时间: 2012-11-9 04:17
标题: 利息问题的计算求教(prep里的)
If $10,000 is invested at x percent simple annual interest for n years, which of the following represents the total amount of interest, in dollars, that will be earned by this investment in the n years?  这题没有答案
我的理解:  "simple annual interest for n years" 是 10000x%n   ,,如果没有出现"compounded....."   此类题目不需要将前一年的利息也算入第二年本金吧?

经常看到一些题目问某笔钱P以x%年利率投资了多少年以后一共多少,这类题也没有出现compounded,但是答案确似乎都是按照复利计算的:P(1+x%)^n

不知道各位大侠如何理解这类题目,我实在有点头晕。


作者: Jaycandoit    时间: 2012-11-9 04:23
对,simple annual interest for n years是:10,000*x%*n
annually compound interest for n years是:10,000(1+x%)^n
continuously compound interest for n years是: 10,000*exp(x%*n)
如果没有特别提到一般就是按annually compound来算的
作者: Jianke311    时间: 2012-11-9 04:50
Thank you.....continuously compound interest for n years 这个似乎太复杂了,希望不要考到,,,exp是指数的意思么?看不懂
作者: Willyum    时间: 2013-10-27 16:13
谢谢 解释的 呵呵
作者: jijilolo    时间: 2019-8-13 23:39
谢谢!!!!!!!!!!!!!!!!!!
作者: AMBER513    时间: 2019-8-22 08:14
看一下!               




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