Let's call the previously mentioned functions:
remainder
function returns the remainder of the two arrays, element-wise. 0
is returned if the second number is 0
:a = np.arange(-4, 4) print "Remainder", np.remainder(a, 2)
The result of the remainder
function is shown as follows:
Remainder [0 1 0 1 0 1 0 1]
mod
function does exactly the same as the remainder
function:print "Mod", np.mod(a, 2)
The result of the mod
function is shown as follows:
Mod [0 1 0 1 0 1 0 1]
%
operator is just shorthand for the remainder
function:print "% operator", a % 2
The result of the %
operator is shown as follows:
% operator [0 1 0 1 0 1 0 1]
fmod
function handles negative numbers differently than mod
, fmod
, and %
do. The sign of the remainder is the sign of the dividend, and the sign of the divisor has no influence on the results:print "Fmod", np.fmod(a, 2)
The fmod
result is printed as follows:
Fmod [ 0 -1 0 -1 0 1 0 1]