Rounding to the Nearest Even Number

Rounding processing to a direction where rounding error is the least significant.

If the fraction is just at the median value, the value is rounded to the nearest even number.

This is a rounding processing method without bias.

Example of Rounding to Integer Number

Rounding to integer number means so called rounding off. It will round the exact middle number, such as *.500 to the nearest even number.

0.4 → 0

0.5 → 0

0.5001 → 1

0.6 → 1

1.4 → 1

1.5 → 2

1.6 → 2

2.5 → 2

3.5 → 4

4.5 → 4

-0.5 → 0

-1.5 → -2

-2.5 → -2

-3.5 → -4

-4.5 → -4