CIT 591 Python Warm-Up Exercises
Fall 2014, David Matuszek

1. [Get started] Log in. Start IDLE. Compute 2+2.

2. [Write a program] From IDLE, open a new window (File -> New Window, or ctrl-N). Write a program to compute and print the result of adding 2 and 2. Save this program (File -> Save or ctrl-S) on a file named `test.py`, then run it (Run -> Run Module, or F5).

3. [Edit a program] Edit your program to compute and print the result of 13 squared. (You can use `13 * 13`, or `13 ** 2` to compute this.) Run the program.
• `if `IDLE asked you to save the program before running it, do this`:`
Options -> Configure IDLE... -> General -> At Start of Run (F5) -> No Prompt.
Change the program to compute 14 squared, and run it again.
```else:     pass  # do nothing```

4. [Use an if statement] Write a program to ask the user for a number, then print "`number` ``` is even```" if the number is even, or "`number```` is odd```" if the number is odd. (Print the actual number instead of `number`.) A number is even if the remainder (`%`), when divided by two, is zero. Save your program on a new file with any name you choose (but it must have a `.py `extension) and run it.

5. [Use a while loop] Write a program to repeatedly do the following: (1) Ask for a number, and (2) print out a message that says what number you entered, and the square of that number (for example, ```5 squared is 25```). Quit when the number `0` is entered.

6. [Use a for loop] Write a program to print out the numbers 1 through 25 and, for each number, print its square and its cube on the same line.
7. [Write a function] Write a function named `powers` that, given a single integer as a parameter:
1. Prints the number, the square of the number, and the cube of the number, on a single line.
2. Returns as its result, a tuple of the three numbers just printed. (A tuple is a parenthesized list of the three numbers.)
You can try out your function by entering, for example, `powers(25)` in the Python Shell window.

8. [Write a complete program] Using the `powers` function, write a program that prints out the numbers 1 through 10, along with their squares and cubes. (Just print the tuples, don't try for neater formatting.)