Re: different Woodstocks Message #6 Posted by Kiyoshi Akima on 2 Sept 2006, 1:36 a.m., in response to message #5 by Dave Shaffer
While we're counting keystrokes...
It can be done in as few as five keystrokes on some machines. I don't think it takes more than seven on any HP RPN or RPL machine.
On those which do the power right AND has the yx as a primary key, 2 ENTER 30 yx works, of course. On some machines a shift key makes it six keystrokes.
On those which do not do the power right but has the x2 as a primary, it can be done in six: 32768 x2. A shift may make it seven.
On any RPN machine except the 80, 32768 ENTER * does it in seven. On the 80, merely replace the ENTER with SAVE.
And then there are the "cheats", of course. Under certain conditions, something like RCL 0 or GSB A may work. Or possibly even just a single keystroke, like x<>y.
I'm not sure about the algebraics like the 10 and 01, but I think 32768 * = would work.
Can anyone find a better solution, or a machine that requires more than seven keystrokes?
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