Dev C 5.12 Apr 2026

// Function prototypes void showMenu(); void basicCalculator(); void advancedCalculator(); void numberStats(); void primeChecker(); void temperatureConverter(); void clearScreen();

switch(choice) { case 1: { double exponent; cout << "Enter base: "; cin >> num; cout << "Enter exponent: "; cin >> exponent; result = pow(num, exponent); cout << "\nResult: " << num << "^" << exponent << " = " << result << endl; break; } case 2: cout << "Enter number: "; cin >> num; if(num >= 0) { result = sqrt(num); cout << "\nSquare root of " << num << " = " << result << endl; } else { cout << "\nError: Cannot calculate square root of negative number!\n"; } break; case 3: cout << "Enter angle in degrees: "; cin >> num; result = sin(num * M_PI / 180.0); cout << "\nsin(" << num << "°) = " << result << endl; break; case 4: cout << "Enter angle in degrees: "; cin >> num; result = cos(num * M_PI / 180.0); cout << "\ncos(" << num << "°) = " << result << endl; break; case 5: cout << "Enter angle in degrees: "; cin >> num; if(fmod(num, 180) != 90) { result = tan(num * M_PI / 180.0); cout << "\ntan(" << num << "°) = " << result << endl; } else { cout << "\nError: Tangent undefined for this angle!\n"; } break; default: cout << "\nInvalid choice!\n"; } }

if(isPrime) { cout << "\n" << num << " is a PRIME number!\n"; // Find next prime int nextNum = num + 1; while(true) { bool nextIsPrime = true; for(int i = 2; i <= sqrt(nextNum); i++) { if(nextNum % i == 0) { nextIsPrime = false; break; } } if(nextIsPrime) { cout << "The next prime number is: " << nextNum << endl; break; } nextNum++; } } else { cout << "\n" << num << " is NOT a prime number.\n"; // Find factors cout << "Factors: "; for(int i = 1; i <= num; i++) { if(num % i == 0) { cout << i; if(i < num) cout << ", "; } } cout << endl; } } dev c 5.12

if(n <= 0) { cout << "Invalid number of entries!\n"; return; }

void primeChecker() { int num; bool isPrime = true; // Function prototypes void showMenu()

double average = sum / n;

cout << "\n--- Temperature Converter ---\n"; cout << "1. Celsius to Fahrenheit\n"; cout << "2. Fahrenheit to Celsius\n"; cout << "Enter your choice: "; cin >> choice; "Enter base: "

void temperatureConverter() { int choice; double temp, converted;

switch(choice) { case 1: cout << "Enter temperature in Celsius: "; cin >> temp; converted = (temp * 9.0/5.0) + 32; cout << "\n" << temp << "°C = " << converted << "°F\n"; break; case 2: cout << "Enter temperature in Fahrenheit: "; cin >> temp; converted = (temp - 32) * 5.0/9.0; cout << "\n" << temp << "°F = " << converted << "°C\n"; break; default: cout << "\nInvalid choice!\n"; } }

void numberStats() { int n; vector<double> numbers;