Question

Write an expression using membership operators that prints "Special number" if special_num is one of the special numbers stored in the list special_list = [-99, 0, or 44]. Sample output with input: 17

Answer 1

To check if 'special_num' is within 'special_list' using Python, we apply the 'in' membership operator. The student is guided through constructing an if-else statement that prints 'Special number' if 'special_num' is within the list.

Step-by-step explanation:

The student is asking for an expression using membership operators in Python that checks if a variable special_num is contained within a specific list called special_list. To achieve this, we can use the in operator, which is a membership operator that returns True if the specified value is found in the sequence.

Here's an example of how the expression would look like:

special_list = [-99, 0, 44]
if special_num in special_list:
print("Special number")
else:
print("Input: " + str(special_num))

When the special_num variable has the value of 17, the output will be "Input: 17" since 17 is not in the list special_list.

Answer 2

To check if a number is within a list of special numbers, use the membership operator 'in' within an if statement in Python. When special_num is within the special_list, it triggers the print statement; otherwise, the code remains silent.

Step-by-step explanation:

To create an expression using membership operators that prints "Special number" if special_num is one of the special numbers stored in the list special_list, you can use the in operator in Python. Here is a sample code snippet:

special_list = [-99, 0, 44]
special_num = 17
if special_num in special_list:
print("Special number")

In this example, since special_num is set to 17, the expression within the if statement checks if 17 is in special_list. As 17 is not part of that list, the print statement will not execute and "Special number" will not be printed.