What does "slash at" mean /@?

Question

I searched "slash at" as well as "/@" to no avail.

Consider

Normalize /@ A

I see the net effect, but what does /@ really mean? I understand that @ can be used in lieu of bracket [] for functional inputs. I understand /. is a replacement operator. But what is /@ ?

It is a shortcut for Map as you could discover by searching for /@ in the documentation. — Simon Woods, Oct 19 '16 at 20:42
@SimonWoods. Thanks. I thought it didn't come up in the doc. Now I see it. My bad. — zahbaz, Oct 19 '16 at 20:43
Possible duplicate of What are the most common pitfalls awaiting new users? — march, Oct 19 '16 at 21:00

DPF · Accepted Answer · 2016-10-19T20:54:59.680

2

It is the infix form of Map and takes each Element of the list A and applies it to Normalize in your case. The result is a List of the respective results.

See also: https://reference.wolfram.com/language/ref/Map.html

f /@ {a, b, c, d, e}
(* {f[a] , f[b], f[c] , f[d] , f[e]}*)

edited Oct 19 '16 at 20:54

answered Oct 19 '16 at 20:44

DPF

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It is the infix form of Map, as it is placed between the two operands. – rcollyer Oct 19 '16 at 20:53
you're right. I've corrected it. Thanks. – DPF Oct 19 '16 at 20:54

What does "slash at" mean /@?

1 Answers1