Use `round(number)` to round to the nearest integer
Use `round(number, ndigits)` to round to a specific number of decimal places
Example: `round(3.14159, 2)` returns `3.14`
Example: `round(3.5)` returns `4`
Example: `round(2.5)` returns `2`
Use `math.floor(number)` to round down
Use `math.ceil(number)` to round up
Use `int(number)` to truncate toward zero
Use formatted strings like `f”{number:.2f}”` to display rounded values
Use `decimal.Decimal` for precise rounding control
Use `numpy.round()` when working with NumPy arrays
