I finally got an  hft  that pleases me:

    ]A=:2 2$1 2j3 0 4
1 2j3
0   4
  
    hftla 
] + (0 = ]) * [: + |:
   
   hftla A
   1 2j3
2j_3   4
   
Kip, Is there a good matrix with shape  3 3  to use for testing?

Linda


-----Original Message-----
From: programming-boun...@forums.jsoftware.com
[mailto:programming-boun...@forums.jsoftware.com] On Behalf Of km
pSent: Thursday, January 17, 2013 4:35 PM
To: programm...@jsoftware.com
Subject: Re: [Jprogramming] Hermitian from triangular

Yep, archangel.

Sent from my iPad


On Jan 17, 2013, at 2:51 PM, bob therriault <bobtherria...@mac.com> wrote:

> Last tweak (I promise)
> 
> Because the rank of | is 0 0 0 we don't need to specify the rank in the
definition of la.
> 
> la =: [`]@.(<&|)
>    (la +@|:) A
>   1 2j3
> 2j_3   4
> 
> Though we do need the parenthesis to separate < from the @. conjunction.
> 
> Cheers, bob
> 
> 
> On 2013-01-17, at 12:29 PM, bob therriault wrote:
> 
>> la =: [`]@.(<&|)"0
> 
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