Python’s x % y returns a result with the sign of y instead, and may not be exactly computable for float arguments. For example, fmod(-1e-100, 1e100) is -1e-100, but the result of Python’s -1e-100 % 1e100 is 1e100-1e-100, which cannot be represented exactly as a float, and rounds to the surprising 1e100.

Jun 13, 2009 · Is there a modulo function in the Python math library? Isn't 15 % 4, 3? But 15 mod 4 is 1, right?

Jun 14, 2024 · On Python 3 the calculation yields 6.75; this is because the / does a true division, not integer division like (by default) on Python 2. On Python 2 1 / 4 gives 0, as the result is rounded down. The integer division can be done on Python 3 too, with // operator, thus to get the 7 as a result, you can execute: 3 + 2 + 1 - 5 + 4 % 2 - 1 // 4 + 6

Nov 8, 2016 · Open up the Python console, and do 4 % 2, what is the result? Then do 3 % 2, what is the result? Now which of the results would be considered "true"? The modulo operator returns the remainder after a division. If the division is even (like in 4 % 2) then there is no remainder, the result is 0. –

Aug 23, 2017 · Note that the actual idea of for in Python is to iterate over the buffer contents itself, not and index that will lead to its contents. So, the Python standard library includes a ready made circular buffer object already that always have its indexes normalized to 0 and (len - 1) - just import deque from the collections module.

Jan 5, 2022 · If you're trying to use a different modulus such as % 7, you might get funky results, that's not a code issue but rather more of a modulo problem, as it's very common to use % 2. Any modulus higher than 2 might yield different results.

Feb 8, 2013 · Modulo gives you the rest of a division. 3.5 divided by 0.1 should give you 35 with a rest of 0. But since floats are based on powers of two the numbers are not exact and you get rounding errors. If you need your division of decimal numbers to be exact use the decimal module:

Jul 8, 2013 · % is called the modulo operation. For instance, 9 divided by 4 equals 2 but it remains 1. Here, 9 / 4 = 2 and 9 % 4 = 1. In your example: 5 divided by 7 gives 0 but it remains 5 (5 % 7 == 5). Calculation. The modulo operation can be calculated using this equation: a % b = a - floor(a / b) * b floor(a / b) represents the number of times you can ...

Oct 7, 2010 · Other answers, especially the selected one have clearly answered this question quite well. But I would like to present a graphical approach that might be easier to understand as well, along with python code to perform normal mathematical modulo in python. Python Modulo for Dummies. Modulo function is a directional function that describes how ...

Jul 20, 2015 · Update: The Python's built-in hash function provides deterministic values only for a single process. If you want to keep this information (directly or indirectly ) in a database you have to use an explicit hash function that doesn't include any random data. (Credit goes to @Alik)