Name: swC45995 Date: 01/29/97


In Windows NT the the Math.IEEEremainder method wrongly computes the
IEEE 754 remainder operation. According the IEEE 754 standard:

... the remainder value is mathematically equal to x - y * n where n
is the mathematical integer closest to the exact mathematical value of
the quatient x / y; if two mathematical integers are equally close to
x / y then n is the integer that is even. (JLS, #20.11.14)

Thus the IEEE remainder operation on the operands 9.0f and 3.0f must
produce -3.0f as the result. However compilation and subsequent execution
of the test:

public class test
{
public static void main(String argv[])
{
float f = 9.0f;

System.out.println(Math.IEEEremainder(f, 6.0f))
}
}

produces the following output:

novo40% javac test.java
novo40% java test
3.0

instead of expected:

-3.0

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