[eggy]

I also dabble in Dyalog APL. I have an inexplicable bias for the symbols, however I really like J and the commmunity. I have played with Jd with a trial license, and as said above, J is free and the source is available for scrutiny. I have played with using the J DLLs in my C code. I am always amazed at my takeaway understanding of a mathematics problem after working it out in J. It somehow gels it in my mind, and fits with the equations in normal math symbols.

I am one of those who stare at arrays! [1]

  [1]  http://www.aprogramminglanguage.com/

[fusiongyro]

I like the APL symbols, but I think we could probably do better today, since we're not as limited by what we can come up with using overstriking.

[eggy]

Probably, but like Cuneiform's wedge-shaped marks, it brings an easy familiarity to a line or lines of text or code. It would be cool to make APl in Vulcan or Predator symbols!