Sum

The Sum function adds up the arguments and returns the total.

One or more arguments are required and can include ranges.

Empty

are ignored.

Text strings that cannot be converted to a quantity are ignored.

Usage:

	= Sum(<arguments(s)>[, ...])

Examples:

	/* returns 7 */
	= Sum(1, 2, 3, TRUE, FALSE, "hello");

With named

references:

	= Sum(east:west, overseas);