There are two types of division operations in python.
Python floor division negative numbers.
Ordinary division with operator 2.
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.
Division works differently in python 2 and 3.
To get a float result in python 2 without floor rounding we can specify one of the operands with the decimal point.
Tim peters who knows where all python s floating point skeletons are buried has expressed some worry about my desire to extend these rules to floating point modulo.
Mathematically python is not giving correct output for integer division for negative number e g.
The above example of 2 3 which gives 0 in python 2 shall be used as 2 3 0 or 2 0 3 or 2 0 3 0 to get 0.
Phyton python floor division operator python floor division example python floor the expression 6 4 yields 1 where floor division produces the whole number after dividing a number.
7 2 3 but python is giving output 4.
To do round up division you would use.
But for floor division in python 2 int int int to understand m.
The truncate towards negative infinity rule can cause precision loss for x 1 0 when x is a very small negative number.
Georg brandl georg brandl date.
For positive numbers there s no surprise.
Python s default division of integers is return the floor towards negative infinity with no ability to change that.
Floor division with operator note.
5 2 2 but if one of the operands is negative the result is floored i e rounded away from zero towards negative infinity.
You can read the bdfl s reason why.
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The rounding towards zero behavior was deprecated in python 2 2 but remains in python 2 7 for the sake of backward compatibility and was removed in python 3.
I was asked again today to explain why integer division in python returns the floor of the result instead of truncating towards zero like c.
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.
In python 2 the quotient returned for the expression 11 2 is 5.
