#John Bible 11/22/21 #What I learned was how to use compound conditionals, boolean expressions, boolean operators, and how to combine comparisons. #What I had problems with was part two of task two as I was unsure how to get the code to work but I overcame this by finding previous code to help me.

# not operator print("not True = ", not True) print("not False = ", not False)

# and operator print("False and False = ", False and False) print("False and True = ", False and True) print("True and False = ", True and False) print("True and True = ", True and True)

# or operator print("False or False = ", False or False) print("False or True = ", False or True) print("True or False = ", True or False) print("True or True = ", True or True)

print("True and not False =", True and not False) print("False or not True = ", False or not True)

# [ ] Use relational and/or arithmetic operators with the variables x and y to write: # 3 expressions that evaluate to True (i.e. x >= y) # 3 expressions that evaluate to False (i.e. x <= y) #This will use relational and arithmetic operators with the variables x and y to get 3 expressions that result in true and 3 expressions that result in false x = 84 y = 17 # 3 expressions generating True print(x>y) print(y<x) print(x!=y) # 3 expressions generating False print(y>x) print(x<y) print(x==y)

# [ ] Use the basic Boolean operators with the variables x and y to write: # 3 expressions that evaluate to True (i.e. not y) # 3 expressions that evaluate to False (i.e. x and y) #This will use basic Boolean operators with the variables x and y to get 3 expressions that result in true and 3 expressions that result in false x = True y = False # 3 expressions generating True print(x==True) print(y==False) print(x) # 3 expressions generating False print(y!=False) print(x!=True) print(y)

# Testing if x is outside the range [10, 20] x = 11 (x < 10) or (x > 20)

# Testing if x is outside the range [10, 20] x = 50 (x < 10) or (x > 20)

# Testing if x is a positive and odd number x = 11 (x > 0) and (x % 2 != 0)

# Testing if x is a positive and odd number x = -11 (x > 0) and (x % 2 != 0)

# Testing if x is a positive and odd number x = 22 (x > 0) and (x % 2 != 0)

# Driver information name = 'Colette' age = 17 # Testing if name starts with `C` and the age is 18 or less (name.startswith('C')) and (age <= 18)

# Driver information name = 'John' age = 17 # Testing if name starts with `C` and the age is 18 or less (name.startswith('C')) and (age <= 18)

# [ ] Write an expression to test if x is an even number outside the range [-100, 100] #This will test if x is an even number outside the range [-100, 100] # Test your expression with: # x = 104 (True) # x = 115 (False) # x = -106 (True) # x = -99 (False) x = 104 print(((x < -100) and (x%2!=1)) or ((x>100) and (x%2!=1))) x = 115 print(((x < -100) and (x%2!=1)) or ((x>100) and (x%2!=1))) x = -106 print(((x < -100) and (x%2!=1)) or ((x>100) and (x%2!=1))) x = -99 print(((x < -100) and (x%2!=1)) or ((x>100) and (x%2!=1)))

# [ ] Write an expression to test if a string s starts and ends with a capital letter # HINT: You might find the function `str.isupper()` useful #This will test if a string s starts and ends with a capital letter # Test your expression with # s = "CapitaL" (True) # s = "Not Capital" (False) s="CapitaL" print((s >= 'A') and (s <= 'Z')and(s.endswith("L"))) s = "Not Capital" print((s >= 'A') and (s <= 'Z')and(s.endswith("L")))

# [ ] Write an expression to test if a string s contains a numerical value # then test if the value is greater than the value stored in x # HINT: Use the functions `s.isnumeric()` and `float(s)` #This will test if a string s contains a numerical value and then test if the value is greater than the value stored in x # Test your expression with # s = "39" # x = 24 # Expression should yield True s = "39" x = 24 print(s.isnumeric()) s=float(s) print(s>x) # s = "a39" # x = 24 # Expression should yield False s = "a39" x = 24 print(s.isnumeric())

x = 11 (x >= 10) and (x <= 20)

x = 30 (x >= 10) and (x <= 20)

x = 11 not((x < 10) or (x > 20))

x = 30 not((x < 10) or (x > 20))

# [ ] Write an expression equivalent to the one below to # test if x is outside the range [10, 20] (seen in a previous example) #This will test if x is outside the range [10, 20] # (x < 10) or (x > 20) # Test your expression with # x = 11 (False) # x = 50 (True) x = 11 print(((x < 10) or (x > 20))) x = 50 ((x < 10) or (x > 20))

# [ ] Write a second expression to test if x is an even number outside the range [-100, 100] # Do NOT use the expression you wrote for a previous exercise #This will test if x is an even number outside the range [-100, 100] # Test your expression with: # x = 104 (True) # x = 115 (False) # x = -106 (True) # x = -99 (False) x = 104 print(((x < -100) or (x > 100)) and (x%2!=1)) x = 115 print(((x < -100) or (x > 100)) and (x%2!=1)) x = -106 print(((x < -100) or (x > 100)) and (x%2!=1)) x = -99 print(((x < -100) or (x > 100)) and (x%2!=1))

# Solicit user input x = input("Enter an odd positive number: ") # Convert the string input into int x = int(x) # Test number for validity if ((x > 0) and (x % 2 != 0)): print(x, "is a valid number") else: print(x, "is NOT a valid number")

# Solicit user input y = input("Enter your birth year: ") # Convert the string input into int y = int(y) # Check the decade membership if (y < 1970): print("You were born before 1970!") elif (y >= 1970 and y < 1980): print("You were born in the 70s!") elif (y >= 1980 and y < 1990): print("You were born in the 80s!") elif (y >= 1990 and y < 2000): print("You were born in the 90s!") elif (y >= 2000 and y < 2010): print("You were born in early 2000s!") else: print("You were born in the current decade!")

# [ ] Write a program to validate that user input is outside the range [0, 100] #This will validate that user input is outside the range [0, 100] x = input("Enter a number biiger than 100 or smaller than 0: ") x = int(x) if ((x < 0) or (x > 100)): print(x, "is a valid number") else: print(x, "is not a valid number")

# [ ] Write a program to ask a user for her/his BMI index, then display the user's BMI category #This will ask a user for her/his BMI index, then display the user's BMI category x=input("Enter your BMI index:") x=float(x) if x<=18.5: print("You are underweight") elif (x>18.5 and x<=24.9): print("You are a normal weight") elif (x>=25 and x<=29.9): print("You are overweight") elif x>=30: print("You are obese")