HP 35s Scientific calculator

Mfg.Part: F2215AA#ABA | CDW Part: 1283605 | UNSPSC: 44101808

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HP 35s Scientific calculator
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Product Details

Get the flexibility no other scientific calculator can offer! Our 35s Scientific Calculator lets you choose RPN or algebraic entry-system logic (no other scientific calculator offers both). It also features a large, two-line alphanumeric display and adjustable contrast, plus a robust library of built-in functions and constants.

Choose RPN or algebraic entry-system logic

Work efficiently with the keystroke programming

Efficiently tackle heavy workloads with the 30KB memory and 800+ independent storage registers

Store an equation, then use it again to solve any variable using HP Solve, or employ any of 100 built-in functions

View entries, results, menus, and prompts with ease on the large, two-line display with adjustable contrast

Simplify physics with the 42 built-in physical constants

Get peace of mind with the one-year limited warranty plus HP Total Care advice and support

Display size: 2 lines x 14 characters + indicators

Display Type: LCD

LCD: 14 character dot matrix (5 x 7) x 2 lines + indicators

Contrast: Adjustable

Entry-system logic: RPN and Algebraic

Built-in functions: 100+

Menus, prompts, etc.: Yes

Internal precision: 15 digits

Memory: 800+ Memory registers; 30KB

Keyboard: Alphanumeric

Power: 2 x CR2032 batteries

Power off memory protection: Yes

Battery life: 0.73 year @ 1 hr/day (approximately 9 months)

Weight: 125 g (4.4 oz)

Size (L x W x D): 15.8 x 8.2 x 1.82 cm (6.22 x 3.23 x 0.72 in)

Enclosure material: Plastic, metal faceplate

Key top material: Plastic

Warranty: 1-year warranty (may vary by region)

Subject suitability: Engineering, Surveying, Science, Medicine

Permitted for use on: SAT® Reasoning and SAT® Subject TestsTM in Math 1 and 2, ACT, PSAT/NMSQT, AP Chemistry/Physics, PLAN, EXPLORE

What's in the box Calculator, batteries, user manual, premium protective case
HP 35s Scientific calculator is rated4.52 out of5 by31.
Rated 5 out of 5 by from Great calculator and RPN is a must have.Like the two line display. I do miss the comma delimiter inserted for the thousand, million, etc upon entering a large number.
Date published: 2018-02-05T00:00:00-05:00
Rated 5 out of 5 by from Worthy of it's namesake28-July-2009Having purchased a new HP-35s several months ago, I can now express myopinions on it.First of all, I am a long-time user of HP calculators, starting with theoriginal HP-35, which purchased in my college days for the unheard-of priceof $395!! When the HP-35 died (batteries went defunct) about 10 years.later I purchased an HP-25S (I think), but it somehow disappeared a fewyears later. Maybe the shock of the loss has dimmed my memory!!My RPN calculator prior to the HP-35s was an HP-32s, which I still own, andwhich is perfectly functional. I puchased the HP-35s primarily fornostalgic reasons, as the 35th anniversary of the orignal HP-35 was toomuch to pass up. In other words, I really didn't NEED a new HP calculator.I noted several pleasant surprises with the HP-35s. First was the greatvisibility of the display. It probably isn't really bigger than that ofthe HP-32s, but it somehow LOOKS bigger. And having two line of displayis a major plus. The classic HP-35 case angle is also a big plusThe second feature was the solid keyboard feel, which wasn't really asurprise, as none of the competitors' keyboards have ever been comparableto HP. I know that some of the 2nd-generation HP's, along with some ofthe most modern low-cost HP's have had marginal keyboard reviews, but Isuspect that HP wisely chose to make sure that the HP-35 name was notmaligned by a successor with a cheap keyboard.Just as an aside, I observed the introduction of the HP-33 some years ago,and was completely turned off by it's "retro" look and by the fact that itwas, by default, an algebraic mode calculator. It is my contention that acalculator that is RPN as a secondary mode will not have its key placementoptimized for RPN use. I thus had considered the HP-33 not worth thebother in algebraic mode, as I am firmly in the RPN camp. Conversely, Ialso consider the algebraic mode of the HP-35s to be of litle use.The programmability of the HP-35s tops all other HP's I have owned, thoughadmittedly I have not owned the whole stable of HP's line of programmables.I have already written some useful library functions, the game of Yatze,and a program to check the statistical distribution of the RANDOM functionin the calculator. Some of these programs were undertaked as learningexercises for exploring the HP-35s programming capabilities.The inability to STORE HP-35s programs off-line is annoying. But so isthe price tag that goes with that capability. My perspective is that acalculator is a calculator, and a computer is a computer. If I need acomputer, I'll use a computer! Writing relatively short programs forsolving repetitive computations is easier on the HP-35s that writingcomparable programs on a destop computer. As such, the HP-35s fills auseful niche.I think the choice of batteries (2 x CR2032) was a fine choice. Twoof these batteries provides 6 volts; it takes four alkaline batteriesto generate the save voltage. In my opinion, anyone who runs the pairof CR2032's into the ground in less than 6 months, as one reviewer had,should be using a real computer for such intensive computations.I would also like to comment on a number of complaints raised in HP-35sreviews regarding the lack of polar-to-rectangular and rectangular-to-polarconversions on the HP-35s. I have surmised that these conversions, whichwere included in the HP-33, as well as in my HP-32s, were not dropped onthe HP-35s without reason. And I suspect that the reason was two-fold:a) you may have run out of internal ROM in the 8502 processor;b) the ability to directly manipulated complex and polar coordinate datatypes rendered the polar <-> rectangular conversions redundant.In implimenting a rich set of complex and polar coordinate data functions,it became possible to remove the explicit conversions. It seems like areasonable trade-off to me. I have obtained the polar <-> rectangularconversion program through the HP web-site after writing one for myselffrom scratch. I haven't even figured out how the HP program actuallyworks yet, but I suspect that when I more fully understand the HP-35sEQN capability, it will become clearer.The HP-35s possesses features far beyond the original "HP-35", for afraction of he price, and is solidly built. I would have to think longand hard about what I would do differently in a follow-on "HP-35s/II".Perhaps a cell-phone style SIMM card for storing programs?In summary, the HP-35s is deemed worthy of its namesake.
Date published: 2009-07-29T00:00:00-04:00
Rated 5 out of 5 by from Converting from Binary to Decimal does not work.Converting from decimal to binary works OK, but starting from binary and converting to decimal does not work.
Date published: 2010-01-04T00:00:00-05:00
Rated 5 out of 5 by from Product is not what I expectedI asked for a replacement for a "32S RPN Scientific" calculator that I've owned for many years and LOVED, but unfortunately it died (and no it wasn't batteries.). What I got was a calulator that is far, far ahead of the 32S which is MUCH more complex and difficult to use. I suspect it cost quite a bit more than what I needed and Im NOT particularly happy with it!
Date published: 2012-12-16T00:00:00-05:00
Rated 5 out of 5 by from Great HP35sI was happy to see the HP 35s introduced since I started using HP calculators and programmable calculators years ago. My first was HP 55 then HP 67 etc. I like the HP 35s for it's "simplicity" when I don't need graphing (which is more and more frequent now). The calculator does all I need, in the trusted RPN, and then much more. Simple programs are a charm. Thanks HP.
Date published: 2008-04-15T00:00:00-04:00
Rated 5 out of 5 by from Simply..THE BEST!HP 35s is the best replacement to the old best calculator hp 15C! Nothing more to say!
Date published: 2009-07-27T00:00:00-04:00
Rated 5 out of 5 by from Good RPN...bad enter keyGiven the choices for engineers, The HP35s is a good RPN calculator. I pound on the keys everyday doing simple calculations. Keys do not have the same feel and technology as the old HP's had. My enter key just went bad - floppy and sloppy. No good, especially since HP only has a 1 year warranty. I guess we just buy a new calculator every couple years. HP needs to manufacture keys that last.
Date published: 2011-10-13T00:00:00-04:00
Rated 5 out of 5 by from too big -- much smaller HP 15c or HP 32S IItoo big -- much smaller HP 15c or HP 32S III lost my old calculator
Date published: 2016-05-14T00:00:00-04:00
Rated 5 out of 5 by from Would be perfect except for KeyboardHi,I am a RPN calculator user for 10 years and just can't convince myself to return to conventional algebraic calculators.When I saw the HP 35s, I was convince by its classic design and because it was not a graphic calculator.I just love this calculator and I haven't nothing to say about its functionnalities, it just perfect for me. I'm a mechanical engineer and use it each day.However I had it for two years now and my Enter key is broken (it stands loose in its cavity and it doesn't punch each time I try, see pictures). Previously I had an HP 48gII that did the same thing, it begin by the Enter key followed by the number keys and after a time it is not praticle to work with. With this 48gII this defect appeared just after the end of the warranty, I wrote to HP and they changed it anyway (Excellent work). The 48gII that they sent me broke within a year (see pictures, less good design). And now my HP35s begin to have the same problem.Don't mislead me I am not hard on material. I'm a consulting engineer and my calculators always stays on my desk and don't follow me on the field. Also read, and you'll find other critics talking about those key problems.So I would not recommend this product it will just get you addict to the RPN, but the quality is not there anymore.Hope they will correct this problem a day and come back to the quality that was associated with there calculators.
Date published: 2012-01-24T00:00:00-05:00
Rated 5 out of 5 by from SolidNice and solid. I use it as a back-up. My primary hand calculator is, believe it or not, the original HP41 from the early 80's. After more than 25 years, it is STILL going strong!!!
Date published: 2009-03-11T00:00:00-04:00