使用 C 语言中的公式计算利息金额
问题
编写一个 C 程序,以计算若干年后本金增加利息后的金额
解决方案
计算利息的公式为:
M=((r/100) * t); A=P*exp(M);
其中 r = 利率
t = 年数
P = 要存放的金额
M = 临时变量
A = 有利息后的最终金额
算法
START Step 1: declare double variables Step 2: read amount to be deposited Step 3: read rate of interest Step 4: read years you want to deposit Step 5: Calculate final amount with interest I. M=((r/100) * t); II. A=P*exp(M); Step 6: Print final amount STOP
示例
#include<stdio.h> #include<math.h> #include<ctype.h> int main(){ double P,r,t,A,M; printf("amount to be deposit in the bank: "); scanf("%lf",&P); printf("
enter the rate of interest:"); scanf("%lf",&r); printf("
How many years you want to deposit:"); scanf("%lf",&t); M=((r/100) * t); A=P*exp(M); printf("
amount after %0.1lf years with interest is:%0.2lf",t,A); return 0; }
输出
amount to be deposit in the bank: 50000 enter the rate of interest:6.5 How many years you want to deposit:5 amount after 5.0 years with interest is:69201.53
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