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Python for Mechanical and Aerospace Engineering

Booleans, Logic, and Loops

Explore the fundamental concepts of booleans, logical comparisons, if statements, and loops in Python. Understand how to control program flow using conditions and iteration, essential skills for mechanical and aerospace engineering programming tasks.

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Booleans

The last data type is bool, short for Boolean. A bool can only have one of two values: True or False. By themselves, bools are not that useful. Their usefulness comes from doing logical comparison operations like equals and does not equal. Below is a list of the logical comparisons in Python:

Operation Python syntax
Equals ==
Not equals !=
Less than <
Less than or equal to <=
Greater than >
Greater than or equal to >=
At least one condition is true or
Both conditions are true and

Here are some examples of using logical comparisons:

Python 3.8
print("1 == 2 -->", 1 == 2)
print("100000 > 1 -->", 100000 > 1)
print("5 > 4 and 9 > 8 -->", 5 > 4 and 9 > 8)
print("3 > 2 or 1 > -1 -->", 3 > 2 or 1 > -1)
print("(3 > 2) or (1 > -1) -->", (3 > 2) or (1 > -1))

If

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