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Fully agreed. I stopped considering this practical in any way when I read > 3*4+5 is 27 I'm sorry but if your calculator does not follow standard mathematical

by eis 4y ago

Fully agreed. I stopped considering this practical in any way when I read > 3*4+5 is 27 I'm sorry but if your calculator does not follow standard mathematical rules for operator precedence then I'm out. But the space issue takes it to another level. I also get it, it derives from APL which is right to left and all operators have same precedence but it's just so far from practically usable for normal people... there's a reason noone uses APL today. And sure it's just a plaything but seems weird to even create apps for iPhone, iPad and Android and a logo for it.

iasay 4y ago
Agree with this. I’d rather actually we used postfix notation as that not ambiguous at all. I would like a modern “dc” written in Go if I’m honest. With engineering units, BCD decimal arithmetic, blackjack and hookers. Actually if there was a postfix notation spreadsheet with that capability it would be an interesting tool.
- kqr 4y ago
  Isn't Emacs calc-mode what you're asking for? You can use it as a stand-alone application even if you don't use Emacs for anything else.
  - iasay 4y ago
    That’s like going to Japan to eat sushi. I’d rather make it at home :)
    - kqr 4y ago
      Sushi is very easy to make compared to replicating calc-mode. It's more like going to Japan to ride a Japanese train. Would you rather build a full-scale replication in your back yard?
      - iasay 4y ago
        True but sometimes we do things for the journey :)
mananaysiempre 4y ago
Quick, what should be the order of precedence among (binary!) flip, transp, rot, rho, and iota? APL / Ivy have so many operators a conventional precedence order would likely be completely impossible to remember or work with. (One option I’d consider viable in general would be to define associativity and perhaps compatible groups like {+, -} or {*, /} but force explicit parentheses when operators from different groups are used, but that wouldn’t feel like a calculator.)

by eis 4y ago

iasay 4y ago

Agree with this. I’d rather actually we used postfix notation as that not ambiguous at all. I would like a modern “dc” written in Go if I’m honest. With engineering units, BCD decimal arithmetic, blackjack and hookers. Actually if there was a postfix notation spreadsheet with that capability it would be an interesting tool.

kqr 4y ago
Isn't Emacs calc-mode what you're asking for? You can use it as a stand-alone application even if you don't use Emacs for anything else.
- iasay 4y ago
  That’s like going to Japan to eat sushi. I’d rather make it at home :)
  - kqr 4y ago
    Sushi is very easy to make compared to replicating calc-mode. It's more like going to Japan to ride a Japanese train. Would you rather build a full-scale replication in your back yard?
    - iasay 4y ago
      True but sometimes we do things for the journey :)

mananaysiempre 4y ago

Quick, what should be the order of precedence among (binary!) flip, transp, rot, rho, and iota? APL / Ivy have so many operators a conventional precedence order would likely be completely impossible to remember or work with. (One option I’d consider viable in general would be to define associativity and perhaps compatible groups like {+, -} or {*, /} but force explicit parentheses when operators from different groups are used, but that wouldn’t feel like a calculator.)