On Feb 6, 2007, at 12:30 AM, Steve McKenzie wrote:
> In a similar vein, I am down to my last HP32S RPN scientific calulator.
HP went out of the calculator business a few years ago, right about the
time my HP67 lost its marbles. I bought two HP48 calculators and have
been pleased as punch. You can still find them on the web, apparently
new. They're not your old 4 register machines, (in fact they have
hundreds of registers) but they use RPN and they're easy to program.
The math function library is amazing they have a lot more capability
including graphing and built-in math features to do matrix arithmetic
and some very elegant algebra and calculus. I do most of my Code work
with Excel, but I have no doubt I could do the same stuff at the same
level of complexity on the HP48. One really nice feature is the ability
to do all kinds of units conversion including dimensional analysis
problems very quickly and very accurately.
At the basic level, they operate pretty much like your old HP machinery and you don't need to go into the coplicated stuff if you don't want to, but you're wasting some pretty fine features if you don't. Nicest of all they use ordinary AAA batteries like you get at the drug store and they're easy on them.
Christopher Wright P.E. |"They couldn't hit an elephant at <a href="/group/PipingDesign/post?postID=CerHqijcSl76l54epgSxBh-C_gYLzxigoZNPE3oQ6nPek15tz0lsrWtjLa9gj5MVIwMss-4ITl73">chrisw@skypoint.com</a> | this distance" (last words of Gen.
.......................................| John Sedgwick, Spotsylvania1864)
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