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HP

HP 35s Scientific Calculator

    • Based on 1,135 reviews
Condition: New
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Availability: Only 7 left in stock, order soon!
Fulfilled by CalculatorSource
Arrives Friday, May 24
Order within 17 hours and 22 minutes
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Features

  • Delivers professional performance and flexibility
  • Completely programmable plus more than 100 built-in functions
  • 30KB of memory with 800 memory registers
  • Store an equation and then use again
  • Includes a premium carrying case

Description

Scientific calculator delivers professional performance and flexibility, allowing you to switch between RPN and algebraic entry-system logic at any time. Ultimate pocket-size performer is completely programmable so you can work more efficiently with keystroke programming. Handle the heaviest workloads using 30KB of memory plus more than 800 independent storage registers. Store an equation and then use again to solve any variable using HP Solve application or use 100 built-in functions. Simplify physics with 42 built-in physical constants and a complete library of unit conversions. The HP 35S also features enhanced fractions mode, statistics and mathematics packages with base-n function. Large 2-line display offers adjustable contrast to easily view entries, results, menus and prompts. Get accurate results with edit/undo/delete capability. Enjoy a compact size and protective raised edges that are designed for the mobile profession. Calculator includes a premium carrying case.


Product Dimensions: 6.2 x 3.2 x 0.7 inches


Item Weight: 4.8 ounces


Item model number: 35s


Batteries: 1 Lithium Metal batteries required.


Is Discontinued By Manufacturer: No


Date First Available: August 26, 2010


Manufacturer: Hewlett-Packard


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Oh Please HP, Bring Back the 35s and it’s RPN four Stack
Item Package Quantity: 1
I have RPN calculator emulators on my iPhone, but there are work places we cannot take our phones, and those are not the same feel. Lacking blue tooth, or any other electrical connectivity is a security advantage that keeps out other science calculators — and enables it to be one of three calculators (and the only programmable one) authorized on National professional exams. The efficient RPN is addictive and the four-stack effective. Our only hope is HP will bring the 35s back or is preparing a new iteration with a faster processor, better screen, and the few other features the other two professional exam calculator advantage options have been cited as having. An inexpensive HP300s+ version with an RPN option — like the 35s has an Algebraic option, and a proper RPN machine’s traditional big Enter key and similar stack would allow teaching young students how to enjoy the speed of RPN, thus broadening their view of the world and grow the market. PLEASE HP, bring back the RPN 35s. You hooked us on addictive RPN and now you abandon us! ... show more
Reviewed in the United States on June 11, 2023 by Pen Name
    • Two parts success, one part failure
Item Package Quantity: 1
Note: I would actually rate this 3.5 stars if I could. The "lost stars" are mostly due to the fact the the user needs to program functionality that should be available out of the box. I was studying accounting and decided to take the plunge into RPN. I bought an HP-12C Platinum financial calculator and was hooked on RPN. So, when I decided I wanted to study mechanics and circuits, I looked around for an RPN scientific calculator. The only non-graphing RPN scientific calculator out there is the HP-35s (unless you want to pay the $$$ for SwissMicros). HP could have hit a grand slam with this calculator, but they got LAZY. However, there are workarounds available for certain shortcomings, and missing functionality can be supplied by the user via keystroke programming. If you want or need a scientific RPN calculator (as opposed to a graphing one - if you are a college student, many classes won't allow graphing calculators), I would strongly recommend getting the HP-35s (If it did not provide user-programmability, I would NOT recommend this calculator), but be prepared to put some effort into filling the gaps. If you want an RPN graphing calculator, get the HP Prime (which also does a MUCH better job of providing native functionality). PROS: * RPN - once you go RPN, you never go back. * Great keyboard - not the quality of the old HP Voyager calculators, but very good. * Handles complex numbers using a single stack entry; previous HP calculators required you to enter the real part then the imaginary part, then press COMPLEX to combine the two, requiring you to use 2 of the 4 stack entries. * Complex numbers can be used with ln(x), x^y, sin(x), cos(x), tan(x), abs(x) * Handles vectors natively; calculators like the TI-36X Pro and the Casio fx-115 and fx-991 calculators require you to use a special program and enter the vector components separately, which I find cumbersome beyond belief * Complex numbers can be entered using cartesian or polar notation. * One of two RPN calculators allowed for the FE and PE exams. The other is the HP-33s, which, while functional, is ninth-circle-of-hell ugly. CONS: * (inexcusable) does not automatically recognize when complex numbers are required. If you try to find the square root of -5, you will get the SQRT(NEG) error. Instead, you have to enter it as 5i0. If you have a real number on the stack, you have to add i0 to cast it into a complex number. * (inexcusable) Does not compute vector cross products, but you can write a program to do this * (inexcusable) Functions x^2, log(x), 10^x, sqrt(x) cannot be used on complex numbers; there are workarounds for this using ln(x) and x^y * (inexcusable) Cannot compute arcsin, arccos, arctan for complex numbers, but you can write programs to do this. * Does not have a function to calculate complex conjugate; there is a workaround for this * Cannot convert a single complex number between cartesian and polar format; you set the display mode for the calculator itself, and all complex numbers on the stack will change presentation. ... show more
Reviewed in the United States on April 23, 2021 by WAYNE M SYVINSKI
    • Like RPN? Need a new calculator? Here you go...
Item Package Quantity: 1
My first handheld electronic calculators were TI scientific calculators, but I really wanted HP, mostly because of RPN and overall quality. I finally got my first HP in 1978, an HP-67 programmable calculator (which I still have, but unfortunately, it no longer works). In 1987 (?) I got an HP-15C, which I still have...and still use. It's a wonderful calculator, and is no longer being manufactured by HP. I was looking for another (second) RPN calculator, and happened onto this item on Amazon. After a quick perusal of the reviews, and a bit more research, I ordered one. It's very nice. If you're used to the HP-15, HP-67, HP-41, there is almost no learning curve with the primary functions of this calculator. If you need the financial wizardry of the HP-12C, stop here, and go order one of those. Otherwise, for scientific and math purposes, this calculator does very well. Unlike the other HP calculators I mentioned, this one additionally handles fractions as fractions (if desired), has a better way of displaying imaginary/complex numbers, has metric<->US unit conversion (which admittedly is mostly useful here in the USA, or in other countries when attempting to understand our silly measuring system), and has a lot more storage. It feels a bit cheaper than older HP models, but its keys feel better (to me, anyway) than the flat screen on a smartphone's calculator app. The unit also weighs a lot less than a smartphone with a battery pack attached. It comes with a nice sleeve-style case, similar to the HP-15C. This device does work in Algebraic mode, so if you need to loan it to someone who doesn't understand RPN (or if you don't understand RPN), it's still good for that. However, there are probably better choices for non-RPN calculators if you have no use for RPN. For numerical base conversion (binary, octal, decimal, hexadecimal only), it's not overly difficult to use, but does require reading about how to do it. There are a few extra keystrokes required that are far from obvious. In short, it's a very good RPN calculator, that will be easy to use for HP fans, others not so much. It's inexpensive for what it is. For basic scientific calculations, it's trivially easy to use for those proficient with RPN, but other functions (base conversion, equation solving, programming, fractions), you'll need to refer either to the (very good) online manual or other online reference. ... show more
Reviewed in the United States on September 30, 2020 by Cheryl Sharpe

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