COMP6010: Python Comparison Operators

Python Comparison Operators

• Equal operator: x == y checks if x is equal to y.
• Not equal operator: x != y checks if x is not equal to y.
• Greater than operator: x > y checks if x is greater than y.
• Less than operator: x < y checks if x is less than y.
• Greater than or equal to operator: x >= y checks if x is greater than or equal to y.
• Less than or equal to operator: x <= y checks if x is less than or equal to y.
• Boolean expressions can be used for comparisons, e.g., x < 8 yields True or False based on x's value.

Inline If-Else Statements

• Syntax: statement1 if condition else statement2.
• Executes statement1 if the condition is True; otherwise executes statement2.
• Provides a concise one-line alternative to traditional if-else structures.
• Cannot use elif within inline if-else statements.
• Example:
  • For a = 5, b = 1 if a > 2 else 2 results in b being 1.

Leap Year Calculation

• A year is considered a leap year if:
  • It is divisible by 4 AND not divisible by 100, OR
  • It is divisible by 400.
• Example code checks for leap year:
  • if (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0):

Bank Deposit Interest Calculation

• Interest rates based on deposit amounts:
  • $1 - $1,000: 1%
  • $1,001 - $10,000: 1.5%
  • $10,001 - $50,000: 1.8%
  • $50,001 - $100,000: 2%
  • Over $100,001: 2.5%
• Example code demonstrates how to calculate interest based on the deposit amount.

Income Tax Calculation Framework

• Different tax rates apply based on income levels.
• Base framework involves checking income against various thresholds to determine incremental tax rates.
• Example check:
  • If income is greater than $180,000, additional tax is calculated at 45% on the income exceeding $180,000.