remainder-Remainder

Interface

F_TYPE remainder (F_TYPE x, F_TYPE y)

Description

remainder() returns the remainder r = x-n*y, where n = rint(x /y). Additionally, if |n-x/y|=1/2, then n is even. Consequently, the remainder is computed exactly, and |r| is less than or equal to |y| /2. The drem() and remainder() functions are aliases of each other.

IEEE Std 754 defines remainder(x,0) and remainder(infinity,y) to be invalid operations that produce a NaN.

Exceptions

Exceptional Argument       Routine Behavior

y = 0                      Invalid argument

x = infinity               Invalid argument