EECE 230 Homework 1, Spring 2012

//NAME:Ahmad Husseini //ID NUMBER:201105045 //Problem 1: //Part a: //#include<iostream> //using namespace std; //void main () //{ // system("cls"); // int grade1, grade2, grade3, grade4, grade5; // int averageGradeInteger; // double averageGradeDouble; // cout<<"Please enter the grades of the five courses seperated by whitespaces :"<<endl; // cin>>grade1>>grade2>>grade3>>grade4>>grade5; // averageGradeInteger= (grade1+grade2+grade3+grade4+grade5)/5; // averageGradeDouble= (grade1+grade2+grade3+grade4+grade5)/5.0; // cout<<"the average grade of the five courses is :"<<averageGradeInteger<<endl; // cout<<"the average grade of the five courses is :"<<averageGradeDouble<<endl; // //} //Part b: //#include<iostream> //using namespace std; //void main () //{ // system("cls"); // int grade1, grade2, grade3, grade4, grade5; // int averageGrade; // char comma; // cout<<"Please enter the grades of the five courses seperated by commas :"<<endl; // cin>>grade1>>comma>>grade2>>comma>>grade3>>comma>>grade4>>comma>>grade5; // averageGrade= (grade1+grade2+grade3+grade4+grade5)/5; // cout<<"the average grade of the five courses is :"<<averageGrade<<endl; // //} //Problem 2: //#include<iostream> //#include<cmath> //using namespace std; //void main () //{ // system("cls"); // double a, b, c, d; // cout<<"Please enter the coefficients of a second order equation :"<<endl; // cin>>a>>b>>c; // d=b*b-4*a*c; // double x1, x2; // x1=(-b-sqrt(d))/(2*a); // x2=(-b+sqrt(d))/(2*a); // cout<<"we have two solutions for the pervious equation : "<<x1<<" and "<<x2<<endl; // // //} //Problem 3: //#include<iostream> //#include<cmath> //using namespace std; //void main () //{ // int number; // cout<<"please enter a number of three digits :"<<endl; // cin>>number; // int digit1, digit2, digit3; // digit1=number/100; // digit2=(number/10)%10; // digit3=number%10; // cout<<"the three digits are :\t"<<digit1<<"\t"<<digit2<<"\t "<<digit3<<endl; // // //} Assignment 1 1- write a complete program that asks a student to enter integer grades in 5 courses, calculates and displays the grade average. Write two versions of your program: a- The grades are entered separated by whitespaces b- The grades are entered separated by commas. Use meaningful names for your variables 2- Write a program that asks the user to enter the coefficients of a second order equation, calculates and displays the roots. ( Solution of ax2+bx+c=0) Assume there is solution. Use sqrt function of cmath library 3- Write a program that asks the user to enter an integer on 3 digits, extract and display each digit.