Simple Functions In this workshop, you are to design a function that returns a s

Q: Simple Functions In this workshop, you are to design a function that returns a s

Program has 1 file:main.cpp #include #include #include float laitong(float ); float laitong(float x, int n) { int i; float flai=1; for (i=1; i

ID: 3624393 • Letter: S

Question

Simple Functions In this workshop, you are to design a function that returns a single value and to use that function in a program. Learning Outcome Upon successful completion of this workshop, you will have demonstrated the abilities to analyze a small problem that lends itself to a programming solution design an algorithm to solve the problem write code to implement the solution apply structured programming principles, including single-entry/single-cxit logic, modularity and localization of variables, when writing the code. compose technical program documentation using internal comments and descriptive identifiers. Financial Calculator Design and code a program that performs two financial calculations: future value and present value. Your program prompts for and accepts a principal amount, an interest rate per year, and the number of years If the number of periods is zero then the calculated amount is a present value (principal). Design your program according to structured design principles and include a function that can be used in both calculations as well as in other applications. Do not use any library functions apart from functions. Preface your function header with a comprehensive description of the function purpose, the function parameters and the function return value. The output from your program should look something like:

Explanation / Answer

Program has 1 file:main.cpp

#include <stdio.h>

#include <stdlib.h>

#include <conio.h>

float laitong(float );

float laitong(float x, int n)

{

int i;

float flai=1;

for (i=1; i<=n; i++)

{

flai=flai*(1+x);

}

return flai;

}

int main()

{

system("cls"); //Lam sach man hinh

while(1) //Tao vong lap while

{

system("cls");

int choice, isoky; //Khai bao bien

float ftiengoc, flaisuat, ftaikhoan;

printf(" Choose one of the following options: ");

printf(" 1. Test saving account ");

printf(" 0. Exit ");

printf(" Your selection (0 -> 1): ");

scanf("%d",&choice);

if(choice==0) break; //Kiem tra lua chon choice

if(choice!=0 && choice!=1)

{

printf("**Invalid choice. Try again.**");

}

if(choice ==1)

{

printf("Principal = ");

scanf("%f", &ftiengoc);

printf("Annual rate = ");

scanf("%f", &flaisuat);

printf("No of years = ");

scanf("%d", &isoky);

ftaikhoan=ftiengoc*laitong(flaisuat, isoky);

printf("Principal = %.2f Amount after %d years = %.2f ", ftiengoc, isoky, ftaikhoan);

}

printf("Press any key to continue... "); //Thong bao thuc hien thao tac tiep theo

getch(); //Dung man hinh de nhin thay dong chu: Press any key to continue...

}

return 0;

}