The shape of this calculator remind me of my first HP calculator, the HP 41 CX, which I used through engineering school. Unlike the HP 41 CX, which I still have, the HP 35s feels much lighter, is slim and it feels right in your hands and the price is reasonable.
Powerful, Portable, Programmable, so good I have 2
”
PostedJanuary 31, 2010
Name: HPuserINaus
Gender:Male
Computer proficiency:Advanced
Age:40-54
Features
4/ 5
Performance
3/ 5
The 35S is an extremely powerful yet portable calculator.
Although both algebraic and RPN modes are supported, this calculator works better with RPN and has converted me to RPN after many years using an algebraic HP27S - RPN is faster, more flexible and once you are used to it, simpler.
Why does the 35S work better with RPN? Because with algebraic ,you must enter the function before entering the value eg the sine key must be pressed before entering the number.
The lack of rectangular to polar coordinate conversion keys is not serious - it can be addressed with programs available from vendors and the web. And the programs introduce new users to programming.
Programming the 35S is fascinating. By comparison with programming on a PC, the programming is restrictive, but there are data types and methods available to accomplish a great deal with a tiny amount of code. I am not a professional programmer but find programming the 35s very enjoyable and I have bought an old HP 41X so I can convert some of the vast number of programs available for the 41X to run on the 35S.
Wishlist? More sophisticated handling of alpha characters and a USB connection. I would pay more for a calculator with these facilities. I also have a 50G which has these features but it isn't really a portable calculator. I bought the 50G secondhand, whereas I have bought two 35S new.
The 35S isn't very fast - althought in typical calculator usage, processor speed is not a issue - it is only with some programs that you notice that is it slow - it is slower than its predecessor, the 33S, probably because of the sophisticated vector data handling.
Local note: The price of calculators and many other goods in Australia is double the dollar value because of import duties, taxes and distribution costs. I would prefer to buy directly from HP, althugh I have no complaint about the Australian distributor - it is simply a matter of cost.
The best calculator permitted on the California engineering and surveying exams. Fast calculations with RPN and programming capabilities. Very sturdy and compact design that fits in the shirt pocket or jeans back pocket. The buttons are solid and responsive. Comes with a protective zippered case. I gave it 5 stars all around because you get what you pay for.
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Review 4 for HP 35s Scientific Calculator
Overall rating
1/ 5
“
WHAT A DOWNGRADE
”
PostedApril 23, 2013
Name: cameron2
Location:Whitebear Lake, Minnesota
Gender:Male
Age:40-54
Computer proficiency:Intermediate
Primary use:Business
Features
1/ 5
Performance
3/ 5
I have been using a hp 32s rpn calculator for 22 years. Now I am stuck running this (35s) replacement, and it is a nightmare. Some genius desided to move all the buttons around, and worse yet the 35s no longer has the polar/recatngular convertion funtion that I used on a daily basis. If you never used a previous version this is probably an ok calculator
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Review 5 for HP 35s Scientific Calculator
Overall rating
1/ 5
“
Don't waste your time and money
”
PostedApril 10, 2013
Name: manwholostmoney
Location:Loris, SC
Gender:Male
Age:25-39
Computer proficiency:Intermediate
Primary use:Business
Features
1/ 5
Performance
1/ 5
I have 2 hp33s that I use everyday to help day to day land surveying. I used them so much the buttons started falling off. I then bought this hp35s which was the replacement. What a waste of money! It doesn't have the right functions to calculate and store traverses like the hp33. Also, the ALG mode doesn't flow. It is now a paperwieght and probably going to be a frustration target.
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Review 6 for HP 35s Scientific Calculator
Overall rating
4/ 5
“
A good, useful calculator for engineers
”
PostedMarch 3, 2013
Name: Sisyphus
Location:Torrance, CA
Gender:Male
Age:55+
Computer proficiency:Advanced
Primary use:Business & Personal
Features
4/ 5
Performance
4/ 5
The HP35S is very light and the keyboard has a nice feel. It is somewhat cryptic to program but does have the solver functionality. Not quite as nice as the HP42S which is the gold standard for engineering calculators, in my opinion.
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Review 7 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
Love RPN, Hex mode could be better
”
PostedJanuary 30, 2013
Name: dcook
Location:Oregon
Gender:Male
Age:55+
Computer proficiency:Advanced
Primary use:Business & Personal
Features
5/ 5
Performance
4/ 5
It's rather annoying that when in Hex mode, entered numbers still default to decimal. Entered numbers should default to the current radix mode.
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Review 8 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
Excellent product!
”
PostedJanuary 19, 2013
Name: david991
Location:Santa Monica CA
Gender:Male
Age:55+
Computer proficiency:Advanced
Primary use:Business & Personal
Features
5/ 5
Performance
5/ 5
I have owned over a dozen HP calculators starting with the HP-35. The 35s and the 45 were/are the best of the lot.
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Review 9 for HP 35s Scientific Calculator
Overall rating
3/ 5
“
Product is not what I expected
”
PostedDecember 16, 2012
Name: sphinx40
Location:VAncouver, WA
Gender:Male
Age:55+
Computer proficiency:Advanced
Primary use:Business
Features
3/ 5
Performance
3/ 5
I 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!
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Review 10 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
HP hit the nail on the head
”
PostedDecember 5, 2012
Name: RPNut
Location:Pennsylvania
Gender:Male
Age:25-39
Computer proficiency:Intermediate
Primary use:Personal
Features
4/ 5
Performance
4/ 5
HP has done a great job with this calculator. While it's not built exactly like the classic series (HP-35, HP-65, etc.), it is still a fine calculator. I bought this to use for the FE (Fundamentals of Engineering) Exam because NCEES does not allow the 50G. Even though I'll only need it for the exam, I do not see the money I spent as wasted, as this will be a nice complement to my 50G and other HP calculators. I was a bit concerned about it when I read some of these reviews. One review said that the character for "theta" was too close to the character for "8" because it differed by only two pixels. While this is true, I do not find it annoying. Another reviewer said he was annoyed because the negative sign was not vertically centered in front of the number. This is also true, but again, it's not too bad. Someone said that "LASTX" was gone. I guess he didn't look too hard, because it's right on the enter key! Yet another complaint was that the "STO" function was on a shifted key. Come on, is it really that hard to press one more key? I think the calculator could've come with more of a "case" (mine's more of a slip cover), but times have changed, and leather cases are a thing of the past (even my 50G came with an imitation leather case). All in all, I think HP has done a good job with this calculator in that it is useful, functional, and looks like the classic series of HPs that so many engineers (including myself) have grown to love so well.
P.S. The first 35s I ordered had a problem with the "5" key. It needed to be pressed slightly harder than the others to get it to register. I called HP and had a replacement in two days, no questions asked. I even got to keep the first one!
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Two generations of the HP-35
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Review 11 for HP 35s Scientific Calculator
Overall rating
4/ 5
“
Too much stuff
”
PostedSeptember 19, 2012
Name: latestart
Location:Flagstaff, Arizona
Gender:Male
Age:55+
Computer proficiency:Intermediate
Primary use:Business
Features
2/ 5
Performance
5/ 5
I purchased this unit to replace my classic HP10C which I retired to protect it from damage. I've used the HP10C continuously since 1979. Certainly, the HP35S does not quite have the solid look and feel of the HP10C. But then I didn't expect that it would have the same look and feel. The reviews told me that much. The calculator has some nice features but the entire package has moved backwards because the designers succumbed to the universal current desire to provide more features. So, it's cluttered. My major gripe is that STO is now a two step function. And, LAST 'x' is gone. i used LAST 'x' all the time. So, it's sort of okay but if I could have seen another calculator with RPN. then I would have taken a look.
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Review 12 for HP 35s Scientific Calculator
Overall rating
4/ 5
“
Minor but annoying flaws
”
PostedSeptember 4, 2012
Name: docdent
Location:Nuremberg, Germany
Gender:Male
Age:40-54
Computer proficiency:Advanced
Primary use:Personal
Features
4/ 5
Performance
4/ 5
I have been using HP calculators for 30 years and own 2 HP35s. Basically I like this product. This calculator offers more functions than most people will ever use. But there are some annoying flaws: * The LCD is glare type and hard to read * The "Display All"-Mode is unusable because it tries to show all digits of the mantissa thus truncating the exponent which has to be displayed by using the arrow key. * Why is STO shifted and the rarely used MODE has a own key? * Why has "h" to be added to HEX-Numbers when BASE is set to Hex? and so on.
The display is a real drawback in my view. Different to other reviews I never had problems with the keys, though look and feel is not quite as hp in the 80s and 90s
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Review 13 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
finally a calculator that matches the 32sII
”
PostedAugust 25, 2012
Name: rcomeau
Location:Virginia Beach, VA
Gender:Male
Age:55+
Computer proficiency:Advanced
Primary use:Business & Personal
Features
5/ 5
Performance
5/ 5
The only calculator in 20 years that matches the style and ease of use of the HP 32sII.
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The new and the old but still ticking!
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Review 14 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
Great
”
PostedMay 10, 2012
Name: Calmo
Location:Ohio
Gender:Male
Computer proficiency:Advanced
Primary use:Business & Personal
Age:55+
Features
5/ 5
This is the closest I can come to the HP45 that got me through engineering physics. I worked two summers to raise the cash for the 45 back in the day. RPN, two line display, functions beyond 1975 imagination, and batteries that last 30 months, not three hours.
Living science fiction.
Cool.
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Review 15 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
Just got it and love it.
”
PostedApril 10, 2012
Name: MikeT3
Location:Wichita, KS
Gender:Male
Computer proficiency:Advanced
Primary use:Business & Personal
Age:40-54
Features
5/ 5
Performance
5/ 5
I bought this as the same time as the re-issued 15C. I gotta' say, this could become my new favorite. I love the retro look, it feels good, nice size and love the bigger keys. I just might have to get a couple more...
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Review 16 for HP 35s Scientific Calculator
Overall rating
2/ 5
“
performance
”
PostedMarch 30, 2012
Name: Pantra
Location:CA
Gender:Female
Computer proficiency:Intermediate
Primary use:Business & Personal
Age:25-39
Features
3/ 5
Performance
1/ 5
The product seem nicer and better look compared to 33S. I have my old 33S and need new one for the NCEES exam. The operational functions are reverse to 33S, e.g. 1/x function need to be pressed 1st and then you need to press digit. Especially if you are taking exam w/ time management, you cannot perform functions continuously. You have to memorize your digits and then another operation. I like 33S as it was convenient. If HP use 33S operational way, I mean digits first and then operation, and other features from 35S, that will be so great.
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Review 17 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
A nice complement to the 50G
”
PostedFebruary 11, 2012
Name: punixman
Location:Denver, CO
Gender:Male
Computer proficiency:Advanced
Primary use:Business & Personal
Age:55+
Features
5/ 5
Performance
5/ 5
For just simple plugging in of the numbers and or a not too complicated equation this is the calculator to use, when you are not allow to use your 50G for a math test.
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Review 18 for HP 35s Scientific Calculator
Overall rating
2/ 5
“
Would be perfect except for Keyboard
”
PostedJanuary 23, 2012
Name: NLeb
Location:Trois-Rivieres, Canada
Gender:Male
Computer proficiency:Advanced
Primary use:Business
Age:25-39
Features
5/ 5
Performance
4/ 5
Hi,
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.
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Enter key broken HP35s
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0, 1, 2 and Enter keys broken on HP48gII
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Review 19 for HP 35s Scientific Calculator
Overall rating
1/ 5
“
What a disappointment
”
PostedJanuary 11, 2012
Name: rjb99999
Features
4/ 5
Performance
1/ 5
I have been an HP RPN calculator user for over 30 years, and had purchased a 35s about 15 years ago. One button was sticking so I ordered a new one. The build quality of the new 35s is extremely poor, and the display wouldn't work. I sent it back and asked for a refund. I am very disappointed. HP has lost a customer.
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Review 20 for HP 35s Scientific Calculator
Overall rating
5/ 5
“
Statistics is OK
”
PostedDecember 5, 2011
Name: zdenek
Location:Prague
Gender:Male
Computer proficiency:Advanced
Primary use:Business & Personal
Age:55+
Features
5/ 5
Performance
5/ 5
I have read review which told the statistics function computes wrongly. But its author is wrong! When you go to the p. 12-2 of user guide, you find, that input order of ordinates is Y, X. With this in mind, the results are OK. It's a little strange order, but what to do.