021_two_step.py

# Video alternative: https://youtu.be/QoSng0as5BY&t=0s

from lib.helpers import check_that_these_are_equal

# Here's a function:

def add_one_and_divide_by_two_with_statements(num):
  added = num + 1
  halved = added / 2
  return halved

print("add_one_and_divide_by_two_with_statements(5) is:")

print(
  add_one_and_divide_by_two_with_statements(5)
)

# You could also do this with a single expression, like this:

def add_one_and_divide_by_two_with_an_expression(num):
  return (num + 1) / 2

print("add_one_and_divide_by_two_with_an_expression(5) is:")

print(
  add_one_and_divide_by_two_with_an_expression(5)
)

# The statements just break it up a bit more. We'll see some
# more uses for statements and variables soon, but for now
# let's practice using them.

# @TASK: Complete these functions.

# == Exercise One ==

print("")
print("Function: divide_by_two_and_add_one")

def divide_by_two_and_add_one(num):
  return num / 2 + 1

check_that_these_are_equal(
  divide_by_two_and_add_one(6),
  4.0
)

# == Exercise Two ==

print("")
print("Function: multiply_by_forty_and_add_sixty")

def multiply_by_forty_and_add_sixty(num):
  return num * 40 + 60

check_that_these_are_equal(
  multiply_by_forty_and_add_sixty(3423),
  136980
)

# == Exercise Three ==

print("")
print("Function: add_together_and_double")

def add_together_and_double(num_a, num_b):
  return (num_a + num_b) * 2

check_that_these_are_equal(
  add_together_and_double(3, 4),
  14
)

# When you're done, move on to 022_strings.py