The prospective special code will have a hard time
making the "factor of 2" threshold.

   x=: 1e5 [EMAIL PROTECTED] 100
   y0=: 100 1000 [EMAIL PROTECTED] 100
   y1=: ,y0

   ts=: 6!:2 , 7!:[EMAIL PROTECTED]
   ts 'x,,y0'
0.00322862 1.5735e6
   ts 'x,y1'
0.0022081 1.04922e6



----- Original Message -----
From: Henry Rich <[EMAIL PROTECTED]>
Date: Tuesday, January 2, 2007 5:26 pm
Subject: [Jprogramming] Special code for dyad (, ,) ?

> The docs show special code for things like ($ ,) and
> ({. ,) etc, but not for (, ,)  .
> 
> I am drawing some long vector lists and I hate to see the extra copy
> when I do something like
> 
> displaylist =: displaylist , , long_2D_vector_list


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