CODEWITHSUNDEEP
python
rb87
rb87

Reputation: 21

Python 2.0 gives -9/4 as -3? shouldnt it be -2?

I am using Python 2.0. I tried doing -9/4 and was expecting the answer to be -2. However, it returns -3. Now -9/4 is -2.25 and I thought int type would round it up to -2 instead of -3. When I do int(-2.25), it returns -2. Can anyone please explain why int(-9/4) returns -3 but int(-2.25) returns -2?

Upvotes: 2

Views: 205

Answers (1)

Dietrich Epp
Dietrich Epp

Reputation: 213508

The two operations simply have different rounding modes. From the int() documentation, (reference)

If x is floating point, the conversion truncates towards zero.

Whereas division rounds down, (reference)

Plain or long integer division yields an integer of the same type; the result is that of mathematical division with the ‘floor’ function applied to the result.

Upvotes: 2

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