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Floats

Defining Float Constants​

# Example: Defining pi as a float
pi: float = 3.1415

# Example: Defining percent as a float (50%)
percent: float = 0.50

Representing Height in Meters​

# Example: Defining height in meters as a float
height_in_meters: float = 1.72

Performing Mathematical Operations​

# Example: Performing mathematical operations with floats
a: float = 0.5
b: float = 1.5

# Addition
result_addition = a + b  # Output: 2.0

# Subtraction
result_subtraction = a - b  # Output: -1.0

# Multiplication
result_multiplication = a * b  # Output: 0.75

# Division
result_division = a / b  # Output: 0.3333333333333333 (approximately 1/3)

Type Annotations with Floats​

# Example: Type annotations with floats and integers
float_value: float = 10  # Integer can be assigned to a float

# Warning: Attempting to assign a float to an integer
# int_value: int = 1.5  # This will result in a warning

# Note: Python automatically converts integers to floats
float_from_int: float = 1.0  # This is compatible

Important Note:

  • While integers can easily be converted to floats, attempting to assign a float to an integer without explicit conversion will result in a warning.
  • Python cannot easily convert a float to an integer without rounding.
  • Even if the float appears as a whole number, like 1.0, it remains incompatible with integers.