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HP 33S Scientific Calculator (F2216A) | 
| Brand: Hewlett-Packard
Category: CE
List Price: $50.99
Buy New: $41.85
You Save: $9.14 (18%)
New (26) Used (1) from $35.43
Rating:  139 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Batteries Included: No
Shipping Weight (lbs): 2
Dimensions (in): 10.4 x 7.6 x 3
MPN: F2216A
Model: F2216A
UPC: 082916014555
EAN: 0082916014555
ASIN: B0000DK6G9
Availability: Pre-Order (0-0 Business Days)
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| Features:
| | RPN and algebraic key-in logic | | | Easy-to-read 2-line LCD | | | Sturdy rubber/plastic construction | | | 32 KB memory, 27 memory storage and recall functions | | | Automatic power off |
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| Accessories:
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| Editorial Reviews:
Amazon.com Product Description
Pocket-sized and full-featured, the HP 33s Scientific Calculator is designed for engineers, surveyors, college students, scientists, and medical professionals. Its two-line display is easy to read, and at only 4.2 ounces, the unit slips easily into your pocket for travel. Boasting both Reverse Polish Notation (RPN) and intuitive algebraic data entry modes, as well as 32 KB memory with 27 memory storage and recall functions, the 33s is ideal for solving a variety of science and engineering problems. Functions include trigonometric, percentage, conversion, coordinate, time, angle, probability, factorial, gamma, fractions, and a variety of statistical operations. The calculator can solve equations, integrate, work with complex numbers, and is programmable. The 386-page manual thoroughly reviews the calculator's many features. When purchased new, the unit is backed by HP's one-year limited warranty. What's in the Box
Calculator, two 3-volt lithium coin batteries (CR2032), instruction manual
Product Description
Professionals and college students have the flexibility no other scientific calculator can offer with the choice of RPN or algebraic entry-system logic. The programmable HP 33s features enhanced capabilities including single and two-variable statistics, base-n functions, a strong mathematics package, unit conversions and a powerful fraction mode. Get professional performance from the ultimate RPN scientific programmable calculator. Switch between RPN and algebraic entry-system logic at any time. The HP 33s continues to deliver with a large 2-line alphanumeric display with adjustable contrast, 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 40 built-in physical constants, plus a complete library of unit conversions Get accurate results with edit, undo and delete capability Enjoy a compact size and comfortable rubber side grips 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 Power to calculate inverse functions, cube root, logarithms, exponents, factorials and more Take advantage of a powerful fraction mode plus fraction-to-decimal conversion Programmable with keystroke programming 31KB memory with 27 independent storage registers Enhanced fractions mode, statistics and mathematics packages with base-n function Compact size and rubber grips for comfort Enclosure material - Plastic, rubber side grips and brushed metal faceplate Dimensions - Length 6.2 x Width 3.2 x Depth 0.63 (15.8x8.3x1.61cm) Weight - 127 grams (4.5 ounces)
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| Customer Reviews: Read 134 more reviews...
 HP 33s the 15c lives on August 27, 2006
Scott Orsborn (Corvallis Oregon)
12 out of 14 found this review helpful
I have had this calculator for almost a week now. I am currently a junior level mechanical engineering major as well as a math/science tutor. I have four other hp calculators, the 30s, 48g, 49g+, and my favorite, a 15c. I have to tell you that i am a huge fan of the 11c and 15c calculators. I think that they are the perfect blend of size and functionality. I also like my 49g+ a great deal. Due to the increasing popularity and value of the 15c, I was looking for something similar that I could throw in my back pack and take to school with out the fear of it being stolen or distroyed in some insane scooter accident. This calculator interfaces exactly like the 11c and 15c. It has the exact same program interface as well. Programming this thing is fun and easy. It makes you feel like a hero to be wizzing through some of these lengthy formulas while others are frantically pushing buttons. It even one-ups the old dogs by offering a way to imbed messages and equations in your programs. It also can prompt you for variable inputs instead of storing the variables before you run the program. In short, I love this thing. I am shelfing my 15c for the collector value. Also, I understand that there are 20 some odd years of improvements between the 15c and the 33s, but it is funny to program in the same equasions and watch how the 33s instantaniously displays the result, while the 15c flashes "running" for 10 seconds. Buy this calculator, its amazing. Learn to use RPN. It will make you smarter, lol, maybe not, but it will make you examine long math problems much more efficently. This is a great machine with a great lineage. Maybe it helps that I live in Corvallis Oregon where the 10c series was birthed and have talked to some of the engineers who built these things, but i love them. If you are looking to put away a vintage calculator that is increasing in value without learning a whole new operating system, or are in the market for a super fast super versitile programmable scientific calculator, this is your best bet. Don't wait till the FE exam to get it. You can master programming this thing in a few hours if you know RPN, and a couple of days if you don't.
Great Value August 3, 2005
Philip Hall (Oak Ridge, TN USA)
6 out of 6 found this review helpful
I'm an engineer who does most computations using computer software. I purchased this model to use at my desk and learn RPN. I've used a Casio graphing calculator since college (12 yrs ago). I have always been intriged with HP's RPN calculators, and have tired out various palm applications that simulate an HP.
I have been very happy with my purchase, it's much easier to use than the palm version. RPN has been a joy to learn and use and the manual very helpful in explaining how to use this tool. I am hooked and would recommend this to anyone wanting a quality RPN calculator. I find using RPN much more powerful than normal calculator entry, and the HP quality better than my old Casio.
I was going to purchase a HP 32II, on ebay, after reading some negative reviews of the 33s. However, they are going for more than double the cost of this new one. For me, most of the flaws that other reviewers have mentioned have not been significant.
Very pleased with this very powerful RPN calculator for $50.
A great calculator March 9, 2006
T. Henderson (ohio)
5 out of 5 found this review helpful
I have been using this calculator for 6 months now and I have experienced none of the problems mentioned in some reviews. It is true that decimal point is not as distinguished as it should be. However in practice you can always read the display correctly. Looking at the display now from all angles I find it readable from even the most extreme angles with the ceiling light reflecting off of the screen.
This is an excellent scientific calculator and is much more capable than the TI scientific calculators like the 30XII solar or other 2 line display scientific calculators. It is equal or better in my oppinion to the TI 83 with the exception that it lacks graphing capability. It is also more efficient to use than the 83. On the 83 almost all common math functions are buried in menus. For instance to use the factorial function on the 83 you must hit the MATH button scroll over the PBR menu and scroll down to the !. On the 33s the factorial function is only 2 button presses away. First press green left arrow, and then the 1/x button to which the factorial function is the "green" or "left" function. Very, very few functions are hidden in menus, and when they are the menu's are short not long and never scrolling. This makes the calculator a snap to use.
However it is the feature set that really puts this calculator out of the league of calculators like TI 30XIIs or other similarly styled calculators. For instance the 33s is programmable, has a very very useful equation solver, and a long list of built in physical constants ranging for the speed of light to the rest mass of an electron. It also has built in conversion functions to make coverting pounds to kilograms or rectagular cordinates to polar cordinates quick and pain free. (note although i have not actually used it the Sharp EL-506WBBK might be nice all though it doesn't have an RPN entry mode, you can't beat the price however)
Perhaps most importantly it has the much sought after Reverse Polish Notation entry mode (RPN mode). This entry mode quantitatively reduces the number of key strokes it takes to enter in a complex calculation. If you are uncomfortable using RPN mode (like my father) it also has an algebraic entry mode.
This calculator is a while not quite a "deal" is cheaper than the TI 83 if you don't need graphing but want advanced features this is your calculator.
HP 33S Great RPN March 24, 2007
B. I. Schumacher (Andover, MA)
5 out of 5 found this review helpful
I have been looking for a replacement for my HP15c (Best calculator ever made!). I have searched ebay for over a year and came to the conclusion I did not want to pay $200+ for a replacement. I also bought a 32sII RPN... great RPN also...but of course...they discontinued that one... so again to buy on ebay was big $$$. I finally found the hp 33s. I am glad to find a calculator for under $50 that does RPN. It meets my need for standard engineering calculations. Does not feel cheap. Buttons of good quality. But still miss my 15c! Liked the HP 33s so much, I am going to order a second one .... since they will probably discontinue... and the price will go up again. I have not ventured into the graphing calculators... don't need that level of calculations. My son has one and loves it. Some day I will pay $100+ and give it a try.... But it is not RPN!!!! So for those from the early 80's who loved the HP15C...give this one a try... it is worth it!
Excellent Product! March 1, 2006
Richard W. Fellows (Annapolis, MD)
4 out of 4 found this review helpful
My first calculator was the HP35, and I've been using HP calculators for the ensuing 32 years, including the HP45, HP67, HP32S, HP32SII, HP42S, and HP49G+, as well as the HP33S. For the money, I don't think you can beat the 33S. I'm somewhat bewildered by the gripes in some of the other reviews about decimal points, enter key location, key layout, key action, display, etc.
Sure, I'd rather have the decimal point in its own space like the 35, 45, 65, 67, 42S, 49G+, etc., but I find that it's just as easy to see this dot on the (later models!) 33S as on the 32S or 32SII. I have absolutely no problem with it. This is one of the clearest and most readable displays I've found on any calculator and, with its two lines showing what's going on with both the X and Y registers, a significant improvement over the 32SII.
The enter key location takes getting used to, but works fine for me, whether I'm using my left or right hand. The overall key layout is a bit weird, but also works ok for me, with good key action--and I have NEVER had a key fail to make an entry when pressed.
Quality? The 33S has it. I find that the injection molded case pieces are fully as well and tightly assembled as on previous models.
Just the improvements I already mentioned make this calculator worth getting. But then you also get 32K of memory, almost 100 times what the 32SII has! You just about never have to worry about running out of memory due to long programs or too many programs, as you did with the 32S, 32SII, and even the 42S.
Overall, I think the 33S is a real bargain.
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