HP 35S 35S Programmable Scientific Calculator, 14-Digit LCD (HP-35S/B12)
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|Item Dimensions L x W x H||3.23 x 0.71 x 6.22 inches|
|Batteries||1 Lithium Metal batteries required. (included)|
|Item Weight||4.7 Ounces|
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- Direct connect over the head headset headphone, No additional amplifiers or adapters required.
- Superior quality sound with the flexible adjustable noise cancellation microphone.
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- Power source(s): battery
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|Item Dimensions||3.23 x 0.71 x 6.22 inches||6.22 x 3.23 x 0.72 inches||6.10 x 3.23 x 0.75 inches||0.40 x 6.50 x 3.00 inches||0.44 x 6.38 x 3.15 inches||7.64 x 5.32 x 0.87 inches|
|Item Weight||4.70 ounces||3.00 lbs||4.06 ounces||3.20 ounces||3.35 ounces||0.32 ounces|
HP 35S 35S Programmable Scientific Calculator, 14-Digit LCD
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RPN is a different syntax that allows no confusion around which thing comes first in operations, or is paired with what. No parentheses. Yet you can enter the most complex expressions right into it, get your answer, and poke on and on, nesting equations, and appending the answer to the ongoing result value, many layers deep. You should really learn this. You'll never go back.
Key printing should be OK for a few years if your hands are clean. These don't look like molded-in or laser-etched markings so beware lifetime if your hands are abrasive. Passes anti-functions tests. Very nifty units conversion on keyboard. Excellent solver function entry. The keyboard is much better than using a cellphone and app. The programmability is the icing on the cake.
1) When you press Enter the stack gets the value but so does the current entry register. Why? I swear it wasn't like this on the 28 (on the 32 you only see one line). Annoying but not terrible. 2) Undo only undoes certain things. Again, I could SWEAR at least on the 28 that this undid the last operation, period, restoring the stack as it was.
Neither of these change my review - the product is what it is at a cheaper price point - most unfortunately. I got it because I finally got sick for when I reach for a calculator for quick stuff (esp when I have enough windows open and don't want to fire up a PC one) not having RPN. But they are curious behaviors I figure I'd point out. If I'm wrong in my recollections I welcome replies and can amend my review accordingly.
The keys are crisp and responsive, all of the additional functions are displayed clearly on or around the keys and if you have never used an RPN calculator, you will never go back if you use one. Also, mine came with a carrying case that appears to be of better quality than the one that came with my HP33s that I purchased several years ago.
Top international reviews
Great calculator, and great service from Science Studio who rapidly got a replacement to me when Royal Mail lost the original!
Can't imagine I'll ever find a beter calculator (unless they make a landscape version!)
If you are at least curious about RPN...
RPN means Reverse Polish Notation and is a faster and more secure way of introducing data once you master it. The test I made with my Kid was to made this the first calculator, learned how to use it and now (1 week after) says it’s faster than classmates’ ones (non RPN). Luckily is not the only one in class so bullying is not a big issue (kids are mean to other kids and any difference is an opportunity o pick on.
For a simple RPN is good, key press is reassuring (not like Casio above), it is a good one but not cheap. It should last more than the others (e.g Casio).
If you are an HP calculator fanboy (not me) just buy because it is the 35th anniversary model.
I bought it because was the simpler/cheaper quality HP RPN I could buy (no need for graphic and matrix and algebraic solving for now)
That said the HP35s represents very good value and highly recommended.
Programmability is useful for repeated tasks, although you would probably use a PC for statistical work. Great for engineering calculations on the move if a laptop is not appropriate, all the functions you are likely to want and more. Now supplied with a slip sleeve rather than a zip pouch (the zips never worked properly). The comprehensive manual is now on CD but is downloadable to e-reader, so is still usable as a reference or passtime if travelling. A good all-round buy for anyone who makes heavy use of a scientific calculator.
Ich kann allerdings die volle Punktzahl nicht vergeben, weil die Progammierung, gegenüber dem HP 41, sehr stark eingeschränkt wurde. So fehlen der komplette ALPHA-Modus und der Programm-Schnellzugriff über die USER-Taste. Somit bleibt dem HP 41 der unangefochtene Legendenstatus. Schade, man hätte aus den HP 35S-Konzept mehr rausholen können!