Returns the sum of all numbers.
(+ [number number] ...)
Arguments
A number.
Return Values
The result of the addition. If you supply only one number argument, this function returns the result of adding it to zero. If you supply no arguments, the function returns 0.
Examples
(+ 1 2) returns 3
(+ 1 2 3 4.5) returns 10.5
(+ 1 2 3 4.0) returns 10.0
