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#include <iostream>
#include <iomanip>
#include <math.h>
using namespace std;
int AddNum(int, int);
int SubNum(int, int);
int MultNum(int, int);
double DiviNum(int,int);
int ModNum(int, int);
int PowNum(int, int);
double ResultSin(int);
double ResultCos(int);
const float PI = 3.14159265;
int main ()
{
int selection;
int num1;
int num2;
for(;;){
cout << "********************CALCULATOR*********************" << endl;
cout << "1. Addition" << endl;
cout << "2. Subtraction" << endl;
cout << "3. Multiplication" << endl;
cout << "4. Division" << endl;
cout << "5. Modular Division" << endl;
cout << "6. Raise x to the power of y" << endl;
cout << "7. Sine(x)" << endl;
cout << "8. Cosine(x)" << endl;
cout << " " << endl;
cout << "0 - Quit" << endl;
cout << "***************************************************" << endl;
cout << "Enter a selection please" << endl;
cin >> selection;
if (selection == 1)
{
cout << "Enter first number:" << endl;
cin >> num1;
cout << "Enter next number:" << endl;
cin >> num2;
cout << "The sum of " << num1 << " and " << num2 << " is " << AddNum(num1, num2) << endl;
}
else if (selection == 2)
{
cout << "Enter first number:" << endl;
cin >> num1;
cout << "Enter next number:" << endl;
cin >> num2;
cout << "The difference of " << num1 << " and " << num2 << " is " << SubNum(num1, num2) << endl;
}
else if (selection == 3)
{
cout << "Enter first number:" << endl;
cin >> num1;
cout << "Enter next number:" << endl;
cin >> num2;
cout << "The product of " << num1 << " and " << num2 << " is " << MultNum(num1, num2) << endl;
}
else if (selection == 4)
{
cout << "Enter first number:" << endl;
cin >> num1;
cout << "Enter next number:" << endl;
cin >> num2;
cout << "The quotient of " << num1 << " and " << num2 << " is " << DiviNum(num1, num2) << endl;
}
else if (selection == 5)
{
cout << "Enter first number:" << endl;
cin >> num1;
cout << "Enter next number:" << endl;
cin >> num2;
cout << "The remainder of " << num1 << " / " << num2 << " is " << ModNum(num1, num2) << endl;
}
else if (selection == 6)
{
cout << "Enter first number:" << endl;
cin >> num1;
cout << "Enter next number:" << endl;
cin >> num2;
cout << num1 << " to the power of " << num2 << " is " << PowNum(num1, num2) << endl;
}
else if (selection == 7)
{
cout << "Enter number:" << endl;
cin >> num1;
cout << "Sine(" << num1 << ")" << " is " << ResultSin(num1) << endl;
}
else if (selection == 8)
{
cout << "Enter number:" << endl;
cin >> num1;
cout << "Cos(" << num1 << ")" << " is " << ResultCos(num1) << endl;
}
else if (selection == 0)
{
break;
}
else
{
cerr << "Error, please make your selection again" << endl;
}
cout << "Press any key to continue" << endl;
system("read");
};
if (selection == 0)
{
exit(1);
}
return 0;
}
int AddNum(int num1, int num2)
{
return num1+num2;
}
int SubNum(int num1, int num2)
{
return num1-num2;
}
int MultNum(int num1, int num2)
{
return num1*num2;
}
double DiviNum(int num1, int num2)
{
return num1/num2;
}
int ModNum(int num1, int num2)
{
return fmod (num1, num2);
}
int PowNum(int num1, int num2)
{
return pow(num1,num2);
}
double ResultSin(int num1)
{
return sin(num1*PI/180);
}
double ResultCos(int num1)
{
return cos(num1*PI/180);
}
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