What is the difference between and when used for division

Question

Is there a benefit to using one over the other  In Python 2  they both seem to return the same results    gt  gt  gt  6 3 2  gt  gt  gt  6  3 2

User · Answer

The double slash      is floor division    gt  gt  gt  7  3 2

User · Answer

is floor division  it will always give you the floor value of the result  And the other one   is the floating-point division    Followings are the difference between   and     I have run these arithmetic operations in Python 3 7 2   gt  gt  gt  print  11   3  3 6666666666666665   gt  gt  gt  print  11    3  3   gt  gt  gt  print  11 3   3  3 7666666666666667   gt  gt  gt  print  11 3    3  3 0

User · Answer

implements  floor division   regardless of your type  So 1 0 2 0 will give 0 5  but both 1 2  1  2 and 1 0  2 0 will give 0   See https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator for details

User · Answer

As everyone has already answered     is floor division   Why this is important is that    is unambiguously floor division  in all Python versions from 2 2  including Python 3 x versions   The behavior of   can change depending on    Active   future   import or not  module-local  Python command line option  either -Q old or -Q new

User · Answer

is floor division  it will always give you the integer floor of the result   The other is  regular  division

User · Answer

The above answers are good  I want to add another point  Up to some values both of them result in the same quotient  After that floor division operator      works fine but not division     operator    -  gt  int 755349677599789174 2   -  gt  377674838799894592       wrong answer  -  gt  755349677599789174   2  -  gt  377674838799894587       correct answer

User · Answer

The double slash      is floor division    gt  gt  gt  7  3 2

User · Answer

is floor division  it will always give you the floor value of the result  And the other one   is the floating-point division    Followings are the difference between   and     I have run these arithmetic operations in Python 3 7 2   gt  gt  gt  print  11   3  3 6666666666666665   gt  gt  gt  print  11    3  3   gt  gt  gt  print  11 3   3  3 7666666666666667   gt  gt  gt  print  11 3    3  3 0

User · Answer

In Python 3 x  5   2 will return 2 5 and 5    2 will return 2   The former is floating point division  and the latter is floor division  sometimes also called integer division   In Python 2 2 or later in the 2 x line  there is no difference for integers unless you perform a from   future   import division  which causes Python 2 x to adopt the 3 x behavior   Regardless of the future import  5 0    2 will return 2 0 since that s the floor division result of the operation   You can find a detailed description at https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator

User · Answer

Python 2 x Clarification  To clarify for the Python 2 x line    is neither floor division nor true division    is floor division when both args are int  but is true division when either of the args are float

User · Answer

Python 2 7 and other upcoming version of python    Division       Divides left hand operand by right hand operand  Example  4   2   2   Floor Division        The division of operands where the result is the quotient in which the digits after the decimal point are removed  But if one of the operands is negative  the result is floored  i e   rounded away from zero  towards negative infinity    Examples  9  2   4 and 9 0  2 0   4 0  -11  3   -4  -11 0  3   -4 0  Both   Division and    floor division operator are operating in similar fashion

User · Answer

The double slash      is floor division    gt  gt  gt  7  3 2

User · Answer

The double slash      is floor division    gt  gt  gt  7  3 2

User · Answer

implements  floor division   regardless of your type  So 1 0 2 0 will give 0 5  but both 1 2  1  2 and 1 0  2 0 will give 0   See https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator for details

User · Answer

gt  gt  gt  print 5 0   2 2 5   gt  gt  gt  print 5 0    2 2 0

User · Answer

implements  floor division   regardless of your type  So 1 0 2 0 will give 0 5  but both 1 2  1  2 and 1 0  2 0 will give 0   See https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator for details

User · Answer

In Python 3 x  5   2 will return 2 5 and 5    2 will return 2   The former is floating point division  and the latter is floor division  sometimes also called integer division   In Python 2 2 or later in the 2 x line  there is no difference for integers unless you perform a from   future   import division  which causes Python 2 x to adopt the 3 x behavior   Regardless of the future import  5 0    2 will return 2 0 since that s the floor division result of the operation   You can find a detailed description at https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator

User · Answer

As everyone has already answered     is floor division   Why this is important is that    is unambiguously floor division  in all Python versions from 2 2  including Python 3 x versions   The behavior of   can change depending on    Active   future   import or not  module-local  Python command line option  either -Q old or -Q new

User · Answer

--  Floating point division     --  Floor division  Lets see some examples in both python 2 7 and in Python 3 5   Python 2 7 10 vs  Python 3 5   print  2 3   ---- gt  0                   Python 2 7 print  2 3   ---- gt  0 6666666666666666  Python 3 5   Python 2 7 10 vs  Python 3 5     print  4 2   ---- gt  2         Python 2 7   print  4 2   ---- gt  2 0       Python 3 5   Now if you want to have  in python 2 7  same output as in python 3 5  you can do the following    Python 2 7 10   from   future   import division print  2 3   ---- gt  0 6666666666666666    Python 2 7 print  4 2   ---- gt  2 0                   Python 2 7   Where as there is no differece between Floor division in both python 2 7 and in Python 3 5  138 93  3 --- gt  46 0         Python 2 7 138 93  3 --- gt  46 0         Python 3 5 4  3      --- gt  1            Python 2 7 4  3      --- gt  1            Python 3 5

User · Answer

5 0  2 results in 2 0  and not 2 because the return type of the return value from    operator follows python coercion  type casting  rules   Python promotes conversion of lower datatype  integer  to higher data type  float  to avoid data loss

User · Answer

is floor division  it will always give you the integer floor of the result   The other is  regular  division

User · Answer

is floor division  it will always give you the integer floor of the result   The other is  regular  division

User · Answer

The answer of the equation is rounded to the next smaller integer or float with  0 as decimal point     gt  gt  gt print 5  2 2  gt  gt  gt  print 5 0  2 2 0  gt  gt  gt print 5  2 0 2 0  gt  gt  gt print 5 0  2 0 2 0

User · Answer

implements  floor division   regardless of your type  So 1 0 2 0 will give 0 5  but both 1 2  1  2 and 1 0  2 0 will give 0   See https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator for details

User · Answer

gt  gt  gt  print 5 0   2 2 5   gt  gt  gt  print 5 0    2 2 0

User · Answer

The above answers are good  I want to add another point  Up to some values both of them result in the same quotient  After that floor division operator      works fine but not division     operator    -  gt  int 755349677599789174 2   -  gt  377674838799894592       wrong answer  -  gt  755349677599789174   2  -  gt  377674838799894587       correct answer

User · Answer

The answer of the equation is rounded to the next smaller integer or float with  0 as decimal point     gt  gt  gt print 5  2 2  gt  gt  gt  print 5 0  2 2 0  gt  gt  gt print 5  2 0 2 0  gt  gt  gt print 5 0  2 0 2 0

User · Answer

Python 3 x Clarification Just to complement some previous answers  It is important to remark that   a    b   Is floor division  As in   math floor a b    Is not int division  As in   int a b    Is not round to 0 float division  As in   round a b 0     As a consequence  the way of behaving is different when it comes to positives an negatives numbers as in the following example  1    2 is  0  as in   math floor 1 2   -1    2 is -1  as in   math floor -1 2

User · Answer

is floor division  it will always give you the integer floor of the result   The other is  regular  division

User · Answer

--  Floating point division     --  Floor division  Lets see some examples in both python 2 7 and in Python 3 5   Python 2 7 10 vs  Python 3 5   print  2 3   ---- gt  0                   Python 2 7 print  2 3   ---- gt  0 6666666666666666  Python 3 5   Python 2 7 10 vs  Python 3 5     print  4 2   ---- gt  2         Python 2 7   print  4 2   ---- gt  2 0       Python 3 5   Now if you want to have  in python 2 7  same output as in python 3 5  you can do the following    Python 2 7 10   from   future   import division print  2 3   ---- gt  0 6666666666666666    Python 2 7 print  4 2   ---- gt  2 0                   Python 2 7   Where as there is no differece between Floor division in both python 2 7 and in Python 3 5  138 93  3 --- gt  46 0         Python 2 7 138 93  3 --- gt  46 0         Python 3 5 4  3      --- gt  1            Python 2 7 4  3      --- gt  1            Python 3 5

User · Answer

In Python 3 x  5   2 will return 2 5 and 5    2 will return 2   The former is floating point division  and the latter is floor division  sometimes also called integer division   In Python 2 2 or later in the 2 x line  there is no difference for integers unless you perform a from   future   import division  which causes Python 2 x to adopt the 3 x behavior   Regardless of the future import  5 0    2 will return 2 0 since that s the floor division result of the operation   You can find a detailed description at https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator

User · Answer

5 0  2 results in 2 0  and not 2 because the return type of the return value from    operator follows python coercion  type casting  rules   Python promotes conversion of lower datatype  integer  to higher data type  float  to avoid data loss

User · Answer

Python 3 x Clarification Just to complement some previous answers  It is important to remark that   a    b   Is floor division  As in   math floor a b    Is not int division  As in   int a b    Is not round to 0 float division  As in   round a b 0     As a consequence  the way of behaving is different when it comes to positives an negatives numbers as in the following example  1    2 is  0  as in   math floor 1 2   -1    2 is -1  as in   math floor -1 2

User · Answer

Python 2 x Clarification  To clarify for the Python 2 x line    is neither floor division nor true division    is floor division when both args are int  but is true division when either of the args are float

User · Answer

Python 2 7 and other upcoming version of python    Division       Divides left hand operand by right hand operand  Example  4   2   2   Floor Division        The division of operands where the result is the quotient in which the digits after the decimal point are removed  But if one of the operands is negative  the result is floored  i e   rounded away from zero  towards negative infinity    Examples  9  2   4 and 9 0  2 0   4 0  -11  3   -4  -11 0  3   -4 0  Both   Division and    floor division operator are operating in similar fashion

User · Answer

In Python 3 x  5   2 will return 2 5 and 5    2 will return 2   The former is floating point division  and the latter is floor division  sometimes also called integer division   In Python 2 2 or later in the 2 x line  there is no difference for integers unless you perform a from   future   import division  which causes Python 2 x to adopt the 3 x behavior   Regardless of the future import  5 0    2 will return 2 0 since that s the floor division result of the operation   You can find a detailed description at https   docs python org whatsnew 2 2 html pep-238-changing-the-division-operator

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