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Detailed explanation of the principle:
This calculator program uses basic C++ syntax and functions to implement various calculation functions. It provides the user with options to select different operations through a circular main menu. According to the user's selection, the program will call the corresponding function to perform the corresponding operation and output the result to the user. Following are the functions of the functions used in the program:
add(double a, double b): Implement the addition operation of two numbers.subtract(double a, double b): Implement the subtraction operation of two numbers.multiply(double a, double b): Implement the multiplication operation of two numbers.divide(double a, double b): Implement the division operation of two numbers. Note that the divisor cannot be zero.squareRoot(double a): Calculates the square root of a given number.convertToFahrenheit(double celsius): Convert Celsius to Fahrenheit.convertToCelsius(double fahrenheit): Convert Fahrenheit to Celsius.generateRan