Practice with interactive mode

• Enter Python interactive mode
  

  python3

• Create three variables
  

  >>> a = 4
  >>> b = 5
  >>> c = 6

• Print the values of the variables you just created
  

  >>> (4, 5, 6)

  Notice that you can print more than one variable at a time.
• Perform some calculations using addition and subtraction
  

  >>> a + b + c
  >>> a + b - c
  >>> b - c - a

• Perform some calculations using the division and remainder operators
  

  >>> c / a
  >>> c // a
  >>> c % a

  Notice the difference between the two different types of division.
• Perform some operations using the exponent operator
  

  >>> a ** 2
  >>> a ** 3
  >>> a ** 4

• Perform some calculations involving operator precedence
  

  >>> a + b * c
  >>> (a + b) * c
  >>> a + b / c
  >>> a + b // c
  >>> a + b % c
  >>> (a + b) / c
  >>> (a + b) // c
  >>> (a + b) % c 

• Quit interactive mode
  
  Control D

Code for this Exercise

• Create the code ex5.py
  
• Enter the following text into the code file
  

• Run this code
  

  python3  ex5.py

• You should see
  

  a: 4 b: 5 c: 6
  
  a + b + c = 15
  a + b - c = 3
  b - c - a = -5
  
  c / a  = 1.5
  c // a = 1
  c % a  = 2
  
  a ** 2 = 16
  a ** 3 = 64
  a ** 4 = 256
  
  a + b * c    = 34
  (a + b) * c  = 54
  a + b / c    = 4.833333333333333
  a + b // c   = 4
  a + b % c    = 9
  (a + b) / c  = 1.5
  (a + b) // c = 1
  (a + b) % c  = 3