Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Calculators
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Calculators
I am pleased that these low cost guides remain available. I have purchased several. I am participating in the SwissMicros DM42 calculator beta program and have found the guides useful memory aids. I have PDF copies of the original HP 42S manuals, which are excellent, but tuck the guide into the calculator pouch to ensure some help is always available. For what it's worth, the new SwissMicros version of the calculator is simply outstanding. It had Thomas Okken's Free42 emulator code base, USB connectivity for upload/download, metal casing back, crystal clear Sharp 400x240 pixel display, long battery life, high quality fit and finish, etc. It is a better calculator than the already great 42S was. I guess that it should be out of beta and available for order sometime soon. The 42S has a new lease of life. I have a number of HP calculators, but this was and is again simply the best engineering calculator.Read full review
Verified purchase: Yes | Condition: New
"This calculator is often regarded as the best ever made in terms of quality, key stroke feel, ease of programming, and daily usability for engineers. Many scientists and engineers use this calculator today, 25 years after its introduction." Wikipedia on the HP 42s Around the turn of the century, HP terminated its' calculator development team and decided to reduce the quality of its' calculators. Since then, Kinpo Electronics of China has been making scientific programmable calculators and HP has been putting their name on it. Kinpo made the HP 33s and the current HP 35s calculators. If you'll read the reviews on eBay, Amazon and HP's own public reviews you'll notice that Kinpo's calculators aren't as good as the one's HP used to make. HP must have read them too and obviously doesn't care any more. In my opinion, the best scientific programmable calculators that HP ever made are the HP 67, HP 15c, HP 32sii and the HP 42s (although I'm very fond of the HP 29c and HP 34c) The best of the bunch I'd have to say is the HP 42s. Personally, I'd like to see an HP 15cii and an HP 42sii. I've asked HP's new President & CEO Dion Weisler to do just that, but I'm not holding my breath. I don't expect HP to ever make a quality calculator again. HP no longer deserves to be associated with quality. Judging by the high prices HP calculators prior to 2001 fetch on eBay, I'd say many others feel the same about HP now. That's a real same. We've told HP what we want and that we're willing to pay for it. Yet, they still won't do it!Read full review
Verified purchase: Yes | Condition: Pre-owned
The HP reverse logic calculator is the easiest to use and the HP 42S is the best and most durable made. The calculator is different than the standard calculator in that you enter the number, then tell it what you want to do with it. This means that you can put a number in, then figure what the next step is. Also if you enter a wrong number, you can back up and correct it without losing your calculation. The keyboard has all the needed functions for geometry, and complex functions. The X=Y, and 1/x are very handy. Lots of storage registers. You will need the book to figure out all the function capabilities. Press "exit" to turn on, press "off" then "exit" to turn off.
Verified purchase: Yes | Condition: Pre-owned
Bought another one. I use and I collect spares. I would like to have a working unit all the days of my life. This machine is a marvel and easily the best scientific calculator ever made. No other manufacturer (TI, Casio, etc.) has produced anything close. This vintage (and still quite relevant unit) represents everything that made HP calculators the go to units for REAL Engineers and Scientists. The built-in function set is COMPLETE. The handling of complex numbers is top notch, and the unit is very easy to program with enough memory to tackle the toughest problems. This is the ULTIMATE ONE!!!!! Jun 30, 2013 An God said, "Let there be the hp 42S....." I continually marvel over this truly magnificient machine. I bought my first as a senior in college after reading an add which stated that the hp 42S RPN scientific calculator was "engineered for the engineer." And I can say the it truly is. It is equipped with anything a working electrical engineer (or any other engineer) needs. The complex number handling was a dream come true, and this hp great is very easy to program. I have used other machines, but this one is truly "the pinnacle of pocket calculator excellence" as another author once wrote. I was so saddened when HP discontinued the model (the end of a great era). I have since bought numerous spares at apparently exorbitant prices, but the machine is worth it, and I do not have kids in daycare (so I can afford them :)). I should be set now until the end of my life at which point I shall consider owning this truly blessed machine one of the most cherished aspects of my life. Read full review
This is, IMHO, one of the best scientific calculators ever made. It's two-line dot matrix display and on-screen menus make it easy to use and program. It has the HP-typical high-quality look and feel, and the battery lifetime is simply amazing! It's comparable to the battery lifetime on the HP-20S (I have the original 1990 batteries in mine and they still hold charge!) This calculator has all the functions known from other HP models, including matrix operations, the HP Solver, numerical integration, complex numbers, and keystroke programmability. It also has an IR interface to talk to HP calculator printers. The built is sturdy and it has a stable plastic case.