User blog comment:Wythagoras/Dollar function part 1/@comment-7484840-20130605162450

I've had a look at your notation. I agree with your comparisons, and I have also noticed an interesting comparison to my notation, Hyperfactorial Array Notation. I think that a$[b[...[d]...][...[d]...]...[...[d]...]] with c [...[d]...]'s and e [...]'s in each [...[d]...] is about equivalent to a![b-1,c,d-1,e], so your notation works in comparison to mine a bit like Bowers'  extended oparators are to BEAF. I hadn't thought of this before, so keep up the good work!