Python Less Than Operator: Syntax, Usage, and Examples
How to Use the Less Than Operator in Python
print(a < b)
- <: The symbol for the less than operator in Python.
- a, b: Variables or values to compare.
When to Use the While Loop in Python
Examples of the Less Than Operator in Python
Conditional Statements
if temperature < 25:
print("It's cool today.")
else:
print("It's warm today.")
Loop Control
while i < 10:
print(i)
i += 1
filtered = [num for num in numbers if num < 20] print(filtered)
Exploring Python's comparison operators, including the less than operator, broadens your understanding and enhances your programming capabilities.
The less than or equal to (<=) operator expands the functionality of the less than operator to include equality. Less than or equal to checks whether the value on the left is either less than or equal to the value on the right. This operator is especially useful in scenarios where the boundary value is also part of the condition.
As an example, consider a loan application system with a minimum income. You might use <= to determine if an applicant's income meets the minimum income, including the boundary value:
applicant_income = 30000
if applicant_income <= minimum_income:
print("Applicant meets the minimum income requirement.") else:
print("Applicant does not meet the minimum income requirement.")
The greater than operator (>) evaluates if the left-side value is larger than the right-side one. If the value is larger, the result is True. If the value isn't larger, the operator returns False. Here's an example contrasting their use:
a = 5
b = 10
if a < b:
print("a is less than b")
if b > a:
print("b is greater than a")
Combining the less than operator with logical operators (and, or, and not) enables complex condition evaluation. For instance, using and allows checking if a value falls within a range:
if age > 18 and age < 30:
print("Eligible for young professionals discount.")
The or operator is useful when a condition meets any one of multiple criteria:
if temperature < 0 or temperature > 35:
print("Warning: Extreme temperatures!")
Combining not with the less than operator can invert conditions, adding flexibility to the logic:
if not score < 80:
print("Grade: A")
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