**Q.**Write an interactive program to calculate compound interest.

**Ans.**

/*c program for calculate compound interest*/

**#include**<stdio.h>

**#include**<math.h>

**#include**<conio.h>

**int**main()

**{**

float p,rate,time,ci;

printf("Enter principal amount : ");

scanf("%f",

**&**p);
printf("Enter interest rate : ");

scanf("%f",

**&**rate);
printf("Enter time period in year : ");

scanf("%f",

**&**time);
//calculate ci

ci=p*(pow((1+rate/100),time)-1);

printf("\nCompound interest = %f",ci);

**return**

**0**;

**}**

__Output__:-
Enter principal amount : 48500

Enter interest rate : 6

Enter time period in year : 2

Compound interest = 5994.600098

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good structured program

ReplyDeleteWhy do we put -1? Please tell

DeletePower (x, -1)

DeleteIs the same as x raised to -1

Or mathematically: (1/x)

Why we put -1 here

ReplyDelete-1 mention in the calculating formula of Compound interest, so it is not the part of C programming language.

Delete