It's just a basic fraction program (it adds, subtracts, multiplies and divides fractions). It might not seem like much maybe not to you guys. I think it signifies that I'm proficient in basic C++ programming (without pointers and stuff). Anyway, here's the program:

Do any of you remember the first program you wrote unnassisted? I did write a smaller program before, but it had many problems before it finally worked. I think I had to resolve to the forums to solve it!Code://Fraction Math by homeyg #include <iostream> using namespace std; //function prototypes void displayAdd(int num1, int num2, int den1, int den2); void displaySub(int num1, int num2, int den1, int den2); void displayMul(int num1, int num2, int den1, int den2); void displayDiv(int num1, int num2, int den1, int den2); int denomChange(int run1, int run2); int denomChangeMul(int run1, int run2); int denomChangeDiv(int rise, int run); int numChangeAdd(int rise1, int rise2, int run1, int run2); int numChangeSub(int rise1, int rise2, int run1, int run2); int numChangeMul(int rise1, int rise2); int numChangeDiv(int rise, int run); int main() { //array variable declarations (array is used to perform a check to see if one of the four operators was input int arrayCount = 4; char opArray[4]; opArray[0] = '*'; opArray[1] = '/'; opArray[2] = '+'; opArray[3] = '-'; bool check; //variable declarations for the numerators and denominators, operation input, and for the loop control int cont; int num1; int denom1; int num2; int denom2; char operation; cout << "This program performs the four main mathematical operations on fractions, nothing fancy."<<endl << "This program will not display mixed numbers, only improper fractions."<<endl << "It will also not simplify the answers."<<endl; //main loop while(cont!=0) { //operation input cout << "What operation do you want to do (*,/,+,-)? "; cin >> operation; //test to see if one of the four valid operators is used //if it is not, the main loop starts over for(int ind = 0;ind<arrayCount; ind++) { if(operation == opArray[ind]) { check = true; break; } if(operation != opArray[ind]) { check = false; } } if(check == false) { cout<<"Invalid operator."<<endl; continue; } //numerator and denominator input section cout << "Enter the numerator and denominator of the first fraction to be performed on."<<endl; cout << "Numerator: "; cin >> num1; cout << "Denominator: "; cin >> denom1; cout << num1 <<"/"<<denom1; cout << "\nEnter the numerator and denominator of the second fraction to be performed on."<<endl; cout << "Numerator: "; cin >> num2; cout << "Denominator: "; cin >> denom2; cout << num2 <<"/"<<denom2; //the function corresponding to the operator is called switch(operation) { case '+' : displayAdd(num1, num2, denom1, denom2); break; case '-' : displaySub(num1, num2, denom1, denom2); break; case '*' : displayMul(num1, num2, denom1, denom2); break; case '/' : displayDiv(num1, num2, denom1, denom2); break; } //test if you want to continue cout << "Press any number to continue and 0 to quit. "; cin >> cont; } return 0; } //display functions ///////////////////////////////////////////// void displayAdd(int num1, int num2, int den1, int den2) { cout << "\nThe answer is: " << numChangeAdd(num1, num2, den1, den2) <<"/"<<denomChange(den1, den2)<<endl; } void displaySub(int num1, int num2, int den1, int den2) { cout << "\nThe answer is: " << numChangeSub(num1, num2, den1, den2) <<"/"<<denomChange(den1, den2)<<endl; } void displayMul(int num1, int num2, int den1, int den2) { cout << "\nThe answer is: " << numChangeMul(num1, num2) <<"/"<<denomChangeMul(den1, den2)<<endl; } void displayDiv(int num1, int num2, int den1, int den2) { cout << "\nThe answer is: " << numChangeDiv(num1, den2) <<"/"<<denomChangeDiv(num2, den1)<<endl; } //denominator calculation functions ///////////////////////////////////////////// int denomChange(int run1, int run2) { if(run1!=run2) return run1 * run2; if(run1==run2) return run1; } int denomChangeMul(int run1, int run2) { return run1 * run2; } int denomChangeDiv(int rise, int run) { return rise * run; } //numerator calculation functions ///////////////////////////////////////////// int numChangeAdd(int rise1, int rise2, int run1, int run2) { if(run1!=run2) { int firstNum = rise1 * run2; int secondNum = rise2 * run1; return firstNum + secondNum; } if(run1==run2) return rise1 + rise2; } int numChangeSub(int rise1, int rise2, int run1, int run2) { if(run1!=run2) { int firstNum = rise1 * run2; int secondNum = rise2 * run1; return firstNum - secondNum; } if(run1==run2) return rise1 - rise2; } int numChangeMul(int rise1, int rise2) { return rise1 * rise2; } int numChangeDiv(int rise, int run) { return rise * run; }

I don't know if I could figure out how to simplify the fractions or put them as mixed numbers without using another page of code so I just said forget it and went with unsimplified, improper fractions.

I have another idea for a program, however, it requires finding the square root of a number which I also don't know how to do. Is there a special function or operator for it?