1 - Compile and install the library.
2 - Use the library to create a simple embedded language for a calculator. The following operations should be implemented: addition, subtraction, multiplication, division and print.
3 - Extend the calculator to include arguments passed as parameters in the command line. Use the format arg{ var = num}, where var is the name of the argument, and num is its default value that should be used if the parameter is not passed in the command line.