PYTHON PROGRAMMING 10

PART 5 – USING FUNCTIONS

PROGRAMS

PROGRAM 1 – SIMPLE FUNCTION

To discuss:

· A function implementation on its own doesn’t do anything.

· Calling a function means using a function.

· We call a function by using its name.

· Functions often have parameters that are passed to them.

def hey_there(name):
 print("Hey there", name, "my friend!")
 
 
hey_there("Felix")
hey_there("Leylah")

PROGRAM 2 – RETURN STATEMENT

To discuss:

· A return statement allows a value to be returned from the function.

· We need to use the returned value when we call a function that returns a value.

def add(num1, num2, num3):
 return num1 + num2 + num3
 
 
sum = add(4, 5, 3)
print(sum)

PROGRAM 3A – RANDOM DICE ROLL

import random
def d(sides):
 return random.randint(1, sides)
 
print(d(5)) #rolling a d5
print(d(10)) #rolling a d10

PROGRAM 3B – BEST OF TWO DIE

def d(sides):
 return random.randint(1, sides)
 
 
dice1 = d(6)
dice2 = d(6)
if dice1 >= dice2:
 print(dice1)
else:
 print(dice2)

PROGRAM 3C – THE MAX FUNCTION

import random
 
def d(sides):
 return random.randint(1, sides)
 
 
def maximum(val1, val2):
 if val1 >= val2:
 return val1
 else:
 return val2
 
 
dice1 = d(6)
dice2 = d(6)
print(maximum(dice1, dice2))

Please clearly state at the top of your program if you are doing option 1 or option 2.

TASK 1 – OPTION 1 (MAX OF 90%)

Use the functions in the program above to roll a d10, two d20 and a d8. You should add the D10, the best of the two D20s and the D8 together and output that total to screen.

SAMPLE IO

Your rolls:

D10: 5

D20: 17

D20: 4

D8: 7

Total: 29

TASK 1 – OPTION 2 (MAX OF 100%)

Write the program that will roll three d20 die. It will output the result of all three. Then, it will add up the best two die results and output that total.

SAMPLE IO

Your rolls:

D20: 9

D20: 17

D20: 10

Best Two Total: 27

PROGRAM 4 – ODD & EVEN FUNCTIONS

def is_even_number(num):
 if num % 2 == 0:
 return True
 else:
 return False
 
def is_odd_number(num):
 if num % 2 == 1:
 return True
 else:
 return False
 
 
print(is_even_number(5))
print(is_odd_number(5))

PROGRAM 5 – PRIMES

To discuss:

· Functions provide the opportunity to hide complexity.

· Even if we don’t know how a function is doing its calculation, we can still know how to use it.

def is_prime_number(num):
 for f in range(2, num):
 if num % f == 0:
 return False
 return True
 
 
print(is_prime_number(17))

TASK 2

a) Use Python to figure out the next prime number after the number 48. Note that you do not need to submit any code for this task, you simply need the answer. So it is up to you to determine how you want to use Python to solve this.

b) Same as in a), but find the next prime number after 1328.

PROGRAM 6 – AREA FUNCTIONS

def rectangle_area(length, width):
 return length * width
 
 
print(rectangle_area(4, 8))

TASK 3

a) Start with the code above. Using the rectangle_area function as reference, create a triangle area function.

b) Test your new function to make sure that it works.

c) Use the two functions to calculate the entire area of the house below. You need to submit your code. You should put the answer as a comment at the bottom of your code.