Lab 4

Author: posguy99

L4-1.py

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+# L4_1.​ Write a program that asks for user input of a number.
+# The program should ask the user to input numbers until the user
+# wants to stop. The number must be between 1 and 100 and the program
+# stops if the user inputs a 0. The values a user inputs should be stored
+# in a Python list and when the user finishes entering numbers and exits
+#  the list should be printed.
+
+theList = list()
+
+while True:
+    user_input = int(input('Enter a number between 1 and 100, or 0 to end: '))
+    if user_input == 0:
+        break
+    if (user_input < 0) or (user_input > 100):
+        print('Invalid, input must be between 1 and 100!')
+        continue
+    theList.append(user_input)
+print('theList: ', theList)

L4-10.py

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+# L4_10.​ Describe the difference between the following two code scripts:
+
+# script A - range(5) starts at 0 and goes to 4, the count of elements is 5
+
+for i in range(5):
+    print(i)
+
+print()
+
+# script b - range(5) starts at 1 and goes to 4, the count of elements is 4
+
+for i in range(1, 5):
+    print(i)

L4-11.py

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+# L4_11. After executing the following Python script observe the results:
+
+for each in range(1980, 2020):
+    if each % 4 == 0:
+        result = True
+    else:
+        result = False
+
+    print(each, '\tLeap Year?\t ', result)

L4-12.py

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+# L4_12
+
+list = [each for each in range(1980, 2020)]
+print(list)
+for each in list:
+    if each % 4 == 0:
+        result = True
+    else:
+        result = False
+    print(each, '\t ', result)

L4-12alternate.py

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+# Rewrite of L14-12
+
+list = [each for each in range(1980, 2020)]
+print(list)
+for each in list:
+    result = True if (each % 4 == 0) else False
+    print(each, '\t ', result)

L4-2.py

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+# L4_2.​ Write a Python function that prints ‘Function Reached’.
+
+
+def thePrint():
+    print('Function Reached')
+
+
+thePrint()

L4-3.py

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+# L4_3.​ Write a Python function that receives a value (parameter)
+# and prints what was passed (parameter) to the function.
+
+def thePrint(parameter):
+    print(parameter)
+
+
+thePrint('Test one.')
+thePrint('Test two.')

L4-4.py

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+# L4_4.​ The mathematical integer division is used to calculate how many times
+# a value is divisible by another value.
+# As an example, 100 integer division 25 is 4
+# (Python represents this calculation as 100//25)
+# and 102 integer division 25 is 4. # Any remainder is ignored (see L4_5).
+# Write a function that takes two values as parameters and returns
+# the calculation of integer division from the two values.
+
+
+def integer_division(a, b):
+    ''' divide a by b, return the integer result '''
+    return a // b
+
+
+print('Divide 100 by 25, result is: ', integer_division(100, 25))
+print('Divide 102 by 25, result is: ', integer_division(102, 25))

L4-5.py

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+# The mathematical modulo is used to calculate the remainder of the
+# integer division. As an example, 102%25 is 2.
+# Write a function that takes two values as parameters and returns
+# the calculation of a modulo from the two values.
+
+def mathematical_modulo(a, b):
+    ''' divide a by b, return the remainder '''
+    return a % b
+
+
+print('Divide 100 by 25, remainder is: ', mathematical_modulo(100, 25))
+print('Divide 102 by 25, remainder is: ', mathematical_modulo(102, 25))

L4-6.py

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+# L4_6.​ Create a list and then sort the list.
+
+theList = list()
+
+while True:
+    user_input = int(input('Enter a number between 1 and 100, or 0 to end: '))
+    if user_input == 0:
+        break
+    if (user_input < 0) or (user_input > 100):
+        print('Invalid, input must be between 1 and 100!')
+        continue
+    theList.append(user_input)
+
+print('theList unsorted: ', theList)
+theList.sort()
+print('theList sorted: ', theList)