The answer 3j2 looks sane.
3j2 * 0j1 0j_1
and the only one in the first quadrant.
Nice!

Am 16.05.20 um 12:32 schrieb Raul Miller:
Oh, I see -- or, I think I see what you were trying to illustrate now.

That said, this is kind of interesting:
    +./(,-)2j_3
3j2

But I also noticed that +/(,-) seems to bring back associativity (we
already had commutativity with +.):

    (i.6) A."0 1]4.57 4.34 4.44
4.57 4.34 4.44
4.57 4.44 4.34
4.34 4.57 4.44
4.34 4.44 4.57
4.44 4.57 4.34
4.44 4.34 4.57
    +./@(,-)"1 (i.6) A."0 1]4.57 4.34 4.44
8.88178e_16 8.88178e_16 8.88178e_16 8.88178e_16 8.88178e_16 8.88178e_16

Thanks,


--
Raul

On Sat, May 16, 2020 at 5:51 AM Hauke Rehr <hauke.r...@uni-jena.de> wrote:

sorry, I was not sufficiently precise about my example
I meant to talk about atomic a only

if $ a is empty, then
+./ (, -) a
will work

Thanks for pointing out the lack of precision.

Am 16.05.20 um 11:46 schrieb Raul Miller:
I was talking about the implementation.

These are different results:

     +./@(,-)4.57 4.34 4.44
8.88178e_16
     +./@(,-)&.x:4.57 4.34 4.44
0.01
     +./@(,-)&.:(*&1p1)4.57 4.34 4.44
5.65432e_16

The reason is that binary floating point cannot represent 5^_1 nor
5^_2 accurately.

Thanks,


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