In this homework you will explore types and function calls!


Write a program that reads in a real number (one that may have a
decimal). Output what was read in to the console to verify that the
number was properly input. Then find the square root of that number
and output this result to the console as well. 


Do this again with sine (sin) and power (pow). (You can write this as
one program and multiple outputs).


Note what happens when you enter both positive and negative numbers to
each of these different functions. Is the answer what you expected.