Як працює функція round у Python?

How to round 2.5 to 2.50 in Python?

The most basic way to round a given number to a given number of significant figures, or decimal places, is using the global round() function. The round() function takes in two arguments: The first argument number specifies the number to round, and is required.

How to round 1.1 to 2 in Python?

The simplest way to round a number in Python is to use the built-in round() function. The round() function takes a number as the first argument and an optional second argument to specify the number of decimal places to round to. If the second argument is omitted, the number is rounded to the nearest integer.

How do I round to 2 decimal places in Python?

The round() function default method is round half to even. To round a number to two decimal places, you must provide the second argument as 2 in the function, i.e., round(3.14159, 2) .

Why does 4.5 round to 4 in Python?

In bankers' rounding and in Python, the average values 4.5 and 5.5 need to be rounded to the nearest even number. Thus, 4.5 rounds to 4 because 4 is even and closer than 6. Similarly, 5.5 rounds to 6, as 6 is closer than 4.

Функція round() повертає число з плаваючою крапкою, округлене до вказаної кількості десяткових знаків після крапки.
Round() — це вбудована функція, доступна в Python. Він поверне вам число з плаваючою точкою, яке буде округлено до десяткових знаків, які …
The round() function returns a floating point number that is a rounded version of the specified number, with the specified number of decimals.