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?

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 …

Oct 7, 2010 · BTW, python actually implements this for floating point as well. >>> -.25 % 1 0.75 The FP extension coincides with how it's e.g. used in Csound to do phasors (mod 1). And a …

Feb 8, 2013 · In Python 3.5 / 0.1 gives you the exact result of 35 because the rounding errors cancel out each other. It really is 3.5 / 0.100000... = 34.9999999.... And 34.9999... is …

Jun 9, 2021 · Starting in python 3.8, the pow function allows you to calculate a modular inverse. As other answers have mentioned, this occurs when you use integers, have a negative exp, …

Sep 23, 2015 · It's simple: pow takes an optional 3rd argument for the modulus. From the docs:. pow(x, y[, z]) Return x to the power y; if z is present, return x to the power y, modulo z …

Jul 17, 2019 · I was converting some codes from Matlab to Python. In matlab there is the function mod which gives the modulo operation. For example the following example shows different …

Sympy, a python module for symbolic mathematics, has a built-in modular inverse function if you don't want to implement your own (or if you're using Sympy already): from sympy import …

Jul 13, 2011 · You may need the result of the division besides the remainder modulo n, so here's a seconds-to-year+days+etc translator which demonstrates the divmod function. Of course, …

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 …