Hacker News Reader

I'm not sure what the parenthesis around the negative sign is supposed to accomplish. Generally you put it around two or more operators.

It's how the key is labeled.

> a dedicated negation operator it should have a higher precedence than power

I prefer the traditional precedence; it ensures - 3 ^ 2 = 0 - 3 ^ 2

I understand the argument, I just wish that the most standard school calculator would highlight somehow what it's doing

Another one is "2 ^ 1 / 2 Enter". Some calculators give 1, newer ones give sqrt(2).

Obligatory but futile plug for HP RPN calculators.

Seconded. But I'm afraid RPN is an endangered species. Who's learning it anymore?

Probably every computer science student learns it in order to implement something useful after learning about the stack.