How do I add two numeric arrays in F#

Question

I am totally new to F#. I have searched high and low but I cannot find an example for what I want.

let A = [| 1.0, 2.0, 3.0, 4.0 |];; //maybe delimiter with ;
let B = [| 4.0, 3.5, 2.5, 0.5 |];;

let C = A + B;; //how do I define the addition operator for arrays?
// expect C=[| 5.0, 5.5, 5.5, 4.5 |]

I have come close with this posting, but it is not what I want.

Those are neither tuples nor arrays, they are in fact the dreaded hybrid: toupees. — Daniel
– Daniel, Commented Sep 14, 2011 at 19:08
(To be clear, what @Daniel means is that semicolons separate values in array/list literals, whereas commas create tuples.) — Brian
– Brian, Commented Sep 14, 2011 at 19:41
Or to put it in another way: the A and B you created are arrays each containing a single element; that single element is a tuple of 4 numbers. — Luc C
– Luc C, Commented Sep 15, 2011 at 6:17

desco · Accepted Answer · 2011-09-14 19:01:17Z

23

let inline (++) a b = Array.map2 (+) a b

let A = [| 1.0; 2.0; 3.0; 4.0 |];;
let B = [| 4.0; 3.5; 2.5; 0.5 |];;
let A1 = [| 1; 2; 3; 1 |];;
let B1 = [| 4; 3; 2; 1 |];;

let C = A ++ B
let C1 = A1 ++ B1

answered Sep 14, 2011 at 19:01

desco

16.8k1 gold badge48 silver badges57 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How do I add two numeric arrays in F#

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related