4 ms·
HP48 is RPN, which sidesteps precedence issues. So, here you explicitly need to decide if you want 2 NEG 2 ^ (i.e. (-2)^2) or 2 2 ^ NEG (i.e. -(2^2)). The tr
by yaks_hairbrush 16y ago
HP48 is RPN, which sidesteps precedence issues. So, here you explicitly need to decide if you want
2 NEG 2 ^ (i.e. (-2)^2) or
2 2 ^ NEG (i.e. -(2^2)).
The traditional order of operations is what the TI series does. In essence, it assumes you want the second form.
By the way, on my HP50G in algebraic mode, typing '-2^2' does give -4.
- laujen 16y agoI apologize. You are correct, the HP48gx is RPN only. Don't know why I thought otherwise. I had it in my head for some reason that 48 did both (it kind of does but not really) and that it gave the answer as 4.