In other words, I like it to work like in the following example:

Line:

Code: Select all

`(map2D + '((1 . 2) (3 . 4) (5 . 6)) )`

should return a result:

Code: Select all

`(3 7 11)`

because:

1 + 2 = 3, or equivalently:

Code: Select all

`(+ 1 2) == 3`

3 + 4 = 7, or equivalently:

Code: Select all

`(+ 3 4) == 7`

5 + 6 = 11, or equivalently:

Code: Select all

`(+ 5 6) == 11`

Here "+" is acting like a function of two variables that is acting of every pair from the given list.