Counts the number of even numbers between two numbers.
|number1, number2||are the two numbers between which the number of even numbers will be counted. Can be any number, even non-whole numbers.|
0 is considered by the EVENCOUNTBETWEEN funciton as an even number.
EVENCOUNTBETWEEN(0, 13) returns 7
EVENCOUNTBETWEEN(13, 0) returns 7
EVENCOUNTBETWEEN (-1234.76,13656.88) returns 7446.