Point taken!   I looked again,  however, to find that Julian Fondren has done
the deed,  for which many thanks!

Next time...

Mike

On 16/02/2021 15:50, Henry Rich wrote:
It's a Wiki.  You should make the change. That is a much better use of everyone's time than composing a Forum message and hoping someone will pick up on it.

There are lots of errors; you will see them even if you don't plan to make a habit of it.  Since you are one of the few who will recognize an error when you see one, have an account ready for the occasion.

Henry Rich

On 2/16/2021 4:37 AM, 'Michael Day' via Programming wrote:
In connection with the recent correspondence on the PAM algorithm for k-medoids,
I thought it _might_ be worth considering using complex coordinates,
eg
   cdata =: j./"1 data
so that distance between points is just the magnitude of the difference of their complex
representations.

Forgetting that magnitude was simply | ,  I found an apparent mistake in the NuVoc:
this appears near the bottom of
*https://code.jsoftware.com/wiki/Vocabulary/jdot#dyadic  :**
**
*

   *Related primitives**
   **Real/Imag (+. y), Signum (Unit Circle) (* y), Length/Angle (*. y),
   Magnitude (* y), .....**
   *

*
**Clearly,  it should read " .... Magnitude  (| y), ..."**
*
I've just seen there's a page for reporting issues,  but I don't think I have an account and don't intend to make a habit of spotting errors there,  so I hope this is ok!

Cheers,

Mike






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