HP 35s Scientific Calculator | 
 enlarge | Brand: Hewlett-Packard
Category: CE
List Price: $59.99
Buy New: $49.04
You Save: $10.95 (18%)
New (22) from $49.04
Rating:  117 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
Availability: Usually ships in 1-2 business days
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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:
Product Description
Get professional performance with the HP 35s Scientific Calculator. Professionals and college students will appreciate the flexibility no other scientific calculator can offer, with the choice of RPN or algebraic entry-system logic. Switch between RPN and algebraic entry-system logic at any time. Save time with an impressive array of programmable scientific functions. The HP 35s delivers a large 2-line alphanumeric display with adjustable contrast, raised edges to protect the keys, and a robust library of built-in functions and constants. Large 2-line display with adjustable contrast to easily view entries, results, menus and prompts Simplify physics with 42 built-in physical constants, plus a complete library of unit conversions Get accurate results with edit, undo, delete capability Enjoy its compact size and protective raised edges that are designed for the mobile professional Use strong statistics functions for single and two-variable statistics, linear regression and more Use base-n functions for binary, octal, decimal and hexadecimal number calculation and conversion Perform operations on complex numbers, calculate logarithms, exponentials, inverse functions and more Take advantage of a powerful fraction mode plus fraction-to-decimal conversion Programmable with keystroke programming Durable design with raised edges to protect the keyboard, and includes a premium carrying case Dimensions - Length 6.22 x Width 3.23 x Depth 0.72 (15.8x8.2x1.82cm) Weight - 125 grams (4.4 ounces)
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.
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| Customer Reviews: Read 112 more reviews...
 Great Calculator! January 8, 2009
The HP 35s is everything that we were wishing for over the last 10 year calculator drought: quality display, quality buttons, programability and RPN.
HP 35s Scientific Calculator January 5, 2009
HP 35s Scientific Calculator.
For the affordable price versus its quality. I am satisfied with this product.
Not what I expected December 28, 2008
I purchased an HP 48 when I was an undergrad back in 1992 and fell in love with RPN. (I believe it's in my advisor's desk or in a friend's garage.) Now that I'm teaching intro science courses, I find myself doing lots of calculator type calculations again. The TI and Sharp calculators that students use these days, both the cheaper and graphing, are really awful. They're completely algebraic. To find the sine of 30, for example, you have to type the SIN first then 30. You end up using parenthesis for everything. (In hindsight, all older calculators were a little bit RPN.) Hence, when I heard that HP had introduced a new RPN calculator I decided to order it.
What I wanted: A simplified HP 48. I wanted a RPN calculator without the graphing, formulas, matrix operations, programming, etc. I almost never used these features.
Surprise: The stack does not work at all like I expected, and I'm not alone. (See other posts.) A number of people here have claimed that something is broken or that there's a design flaw. Old fogies have explained this is how some old HPs used to work, and there is a difference between RPN and RPL. The HP 48 uses RPL. For two months now, I've been trying to get used to the HP 35, true RPN, and asking myself why it is better to have the stack work like this. Nostalgia is the only thing I can think of. Maybe it made more sense back in the day when pocket calculators were new and memory was scarce.
The stack only holds four numbers. I don't like this. Moreover, I don't like that you can't hit delete, delete, delete and pull the stack down. I don't like that it fills in numbers at the top when the stack does move down. How is this useful? Also, as noted by others, if you hit 2 enter 3 enter +, you get 6. OK, maybe the extra enter is bad form, but why is getting 6 useful? To me, the stack does not work like a stack.
Annoying thing #1: There are four modes of display. Fix, Sci, Eng, and All. The All is what you might call normal or float. But if you type 1/3, you'll get 3.3333 with an exponent that is off the screen. Others have mentioned this. The alternative is Fix, Sci, or Eng, but here you always see 4.000, for instance, and never 4.
Annoying thing #2: The battery cover on mine is really loose and falls off. Luckily the case (shaving kit) keeps it on. I remember the cover on the HP 48 was really jammed on. Plus the 48 took normal AAA batteries.
The HP 35s is not a simplified HP 48. I wanted RPL, not RPN. In addition, I would drop all programming, imaginary number, and arrow keys. I don't want a mini computer, especially in a small calculator with two lines of display. I want no menus. I want fewer and smaller keys. The keys on HP 35s are too big and wobbly with too much stuff printed on them. Get Log and Ln out of 2nd. Make different zones of keys different colors, not all black.
Excellent Calculator and easy to use December 27, 2008
I highly recommend this for any student or professional. It is loaded with features and is very easy to use.
Very nice December 19, 2008
I carry it in my lab coat pocket. It's tough, easy to use, and lightning fast. It impresses clients and makes me feel secure.
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