Python 3 Floor Division

For python 2 x dividing two integers or longs uses integer division also known as floor division applying the floor function after division. Python 2 s operator performs floor division where for the quotient x the number returned is the largest integer less than or equal to x. The operators and work just like in most other languages for example pascal or c.

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This operation brings about different results for python 2 x like floor division and python 3 x.

Python 3 floor division.

If you want floor division use available in python 2 2 and later. Python 3 s approach provides a fractional answer so that when you use to divide 11 by 2 the quotient of 5 5 will be returned. However the operator returns a float value if one of the arguments is a float this is similar to c. The interpreter acts as a simple calculator.

But for floor division in python 2 int int int to understand m. Floor division always rounds away from zero for negative numbers so 3 5 will round to 4 but towards zero for positive numbers so 3 5 will round to 3. This means that a b first divides a by b and gets the integer quotient while discarding the remainder. Floor division and modulo are linked by the following identity x x y y x y which is why modulo also yields unexpected results for negative numbers not just floor division.

This means that the result of a b is always an integer. The fractional part is truncated if there. You can type an expression at it and it will write the value. 10 3 3 3333333333333335 and in python 2 x.

Here are a few examples to illustrate the same. Floor division with operator note. Using to do division this way is deprecated. Division works differently in python 2 and 3.

2 3 first output is fine but the second one may be surprising if we are coming java c world. Division and type conversion. Also referred to as integer division. Python operator examples.

Ordinary division with operator 2. The resultant value is a whole integer though the result s type is not necessarily int. 10 3 3 truncation division also known as floordivision or floor division the result of this division is the integral part of the result i e. The operator in python 3 is used to perform floor based division.

Parentheses can be used for grouping. So for example 5 2 is 2. In python 2 7 the operator works as a floor division for integer arguments. In python 2 the quotient returned for the expression 11 2 is 5.

Expression syntax is straightforward. There are two types of division operations in python.

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