[Jprogramming] Morning Mystery

[David Lambert]

    NB. without looking at the other solutions...
    NB. 25 characters---I made it twice!

    %/((+/ .*)~^:4)(1 2,:2 3)
0.618034 0.618034

    NB. I can squeeze that to 19 characters
    %/+/ .*~^:8>:2[\i.3
0.618034 0.618034

> Date: Thu, 25 Feb 2016 02:49:56 -0500
> From: "Linda A Alvord"<lindaalvord at verizon.net>
> To:<programming at jsoftware.com>
> Subject: [Jprogramming] Morning Mystery
> Message-ID: <000001d16fa1$1f8ac160$5ea04420$@net>
> Content-Type: text/plain;	charset="us-ascii"
>
> Using only the single digit counting numbers:
>
>   
>
>     >:i.9
>
> 1 2 3 4 5 6 7 8 9
>
>   
>
> write the shortest possible expression to produce:
>
>   
>
> 0.618034
>
>   
>
> Linda