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HP 35s Scientific Calculator | 
| Brand: Hewlett-Packard
Category: CE
List Price: $59.99
Buy New: $49.99
You Save: $10.00 (17%)
New (20) from $49.99
Rating:  87 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 3
Dimensions (in): 6.2 x 3.2 x 0.7
MPN: F2215AA#ABA
Model: F2215AA#ABA
UPC: 883585142859
EAN: 0883585142859
ASIN: B000TDRHG8
Shipping: Eligible for Super Saver Shipping
Availability: Usually ships in 24 hours
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| Features:
| • | Robust and economical scientific calculator | | • | 100+ built-in functions; 30 KB memory with 800+ registers | | • | Supports RPN and algebraic data entry | | • | 2-line, 14-character display | | • | 1-year limited manufacturer's warranty |
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| Editorial Reviews:
Amazon.com Product Description
Ideal for college students, engineers, surveyors, and medical personnel, the HP 35s scientific calculator offers calculation versatility in one economical unit. For added versatility, the HP 35s lets users choose between RPN or algebraic entry-system logic (no other scientific calculator offers both). It also features a large, two-line alphanumeric display to view entries, results, menus, and prompts with ease. The display also sports an adjustable contrast feature, making it ideal to use both indoors and out. A robust library of 100+ built-in functions and constants also comes pre-loaded for immediate use right out of the box. A robust memory ensures even the largest calculations go smoothly and quickly, and more than 800 independent storage registers allow users to store an equation, then use it again to solve any variable, or employ the equation in conjunction with any of the 100+ built-in functions. The calculator is backed by a manufacturer's 1-year limited warranty. What's in the Box
HP 35s scientific calculator, batteries, user's manual, and premium protective case.
Product Description
Get professional performance from HP s ultimate RPN scientific programmable calculator - ideal for engineers, surveyors, college students, scientists and medical professionals. Scientific projects require accuracy, functionality and dependability for success. The HP 35s scientific programmable calculator delivers them - and more - with features that include 30KB user memory, your choice of RPN and algebraic entry-system logic, a convenient two-line display, and the time-saving HP Solve application.
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| Customer Reviews: Read 45 more reviews...
 Nothing beats RPN August 29, 2008
J. Davis (Pittsburgh, PA)
I bought the original HP-35 back in the early 1970s. I loved RPN then and I love it now. I don't understand why HP nearly gave it up after Texas Instruments moved into the market. Anyway, the HP-35S has everything I need and more. My only criticism: Why isn't there a help feature? You should be able to press and key and get instant help on it.
Not for the feint-hearted! August 27, 2008
John C. Reilly (Brooklyn)
This is truly a "nerd's" calculator. It is a calculating workhorse. It was designed to separate the true math/engineering jock from the weekend dilettante and mere poseur, and the price certainly discourages amateurs--in other words, it is not for eighth graders. But, I don't know, maybe some suburban soccer-mom might buy it so little Britney can do her algebra homework.
"Because she deserves the best"--BIG mistake lady.
Sure you can use it to file your tax return, but make no mistake, you WILL spend some considerable time beforehand learning to just calculate percentages.
But if you decide to man-up, I have two words for you: ALG Mode.
Kudos to HP August 17, 2008
Optimist (Kansas)
There are already many good reviews here covering most of the main points, but here's my 2-cents.
I have used HPs with RPN for many years, including 32S, 42S, 48gII, and 50g. The 35s is a mid-level model like the 32s, but with a few improvements mentioned by others. I especially like the easy entry of complex numbers using the "i" (or shift-theta) key. But the main thing that is good about this calculator is the return to good manufacturing. No more defective keys like those that plagued the 48g series during the "bad years". The 50g I have seems to have fixed this issue at the high-end too.
So why not get the high-end 50g graphing calculator? Because the 35s is simpler and more efficient for basic calculations. Yes - it does not have multi-character labels - but it is much easier to store and recall basic variables than using the 50g (fewer keystrokes and no need to remember more involved programming constructs to make such simple operations work ;-)
Pros: good "upgrade" of the 32sII. Good keyboard. Display has good contrast. Nice for simple complex-number crunching.
Cons: Display of complex numbers is more difficult to read than on the 42s. Definitely NOT a 42s type machine.
But maybe soon the same engineers who produced this nice upgrade/replacement for the 32sII will do the same for the 42s. Please !!!
Thanks HP, for a great product.
And major improvement over the other recent offerings from HP August 4, 2008
David L. Gallego
1 out of 1 found this review helpful
This calculator feels more like the older high quality HP Calcs. HP has all but forgotten this market. The calculator is easy to use and has good power but the major complaint is that there is no way to store or save programs out of the calc. If you need to remove a program it is lost. a card slot or usb port would be a major improvement.
Good 1st Effort August 4, 2008
Steven J. Marrano (Atco, NJ United States)
1 out of 1 found this review helpful
After years in the calculator wilderness,HP is getting the message:most engineers and scientists need something small that they can carry with them.I go back to the 11C which I used in college.My brother still uses it.Back in the 1980's,we had so many good models to choose from (the HP41,the HP15C,etc),it was ridiculous.After the original HP 48 came out,things got ugly and it seems that HP lost its focus.For the longest time,the newer models did not match the quality or the reliability of the original HP tradition.The higher end HP50G is a step in the right direction but it still missed the mark.
As to the current model,I'll list out the pro's and cons.
Pro's:
a) It does not try to do too much.It gives you all of the basic features you need in a nicely laid out display.
b) The keypad has keys that are responsive
Cons
a) Complex number entry is awkward
b) No ability to enter matrices (either real or complex).The older HP 42S (which was designed to emulate the legendary HP 41) had this capability and it desparately needs to be brought back.
c) The manual is good but it needs more fleshing out.In the days of the HP 11C,HP use to publish keystroke routines for common items.This is no longer done and it is a shame as many users program the keystrokes once and re-use them.I also note that the manual should be spiral bound instead of the cheaply bound manual they give you (you will crack the spine if you use your manual alot).
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