- Large, twelve-character display
- 10 data registers and 99 program lines
- Probability, trigonometric, and hyperbolic functions
- Keystroke programming
- Six built-in programs
Technical Details
Product Details
Would you like to update product info or give feedback on images?
|
Product Description
Amazon.com Product Description
A comprehensive scientific calculator, the Hewlett-Packard HP20S features easy-to-use algebraic entry and a built-in program library of over 100 scientific and mathematic functions. The library has frequently used functions like root finder, Simpson's rule of integration, complex number operations, 3x3 matrix operations, quadratic formula, and curve-fitting programs--all at the touch of a key. The HP20S also has essential trigonometry and math functions such as sine, cosine, tangent, exponential, and natural log and antilog functions.
With this calculator, you can also perform English/metric conversions and fast conversions for mass, distance, volume, and temperature. And with the algebraic entry system, you can enter algebraic notations just as you would write them down on paper (a terrific time saver). For calculations you do routinely, the HP20S can record your keystrokes for future use--a great feature when you are working on a long-term project or set of calculations that you'll need to access repeatedly.
This is an ideal tool for students or professionals in the sciences and mathematics, and with its small size, the HP20S conveniently slips into a backpack or briefcase for easy transport. --Dana Van Nest
Product Description
A comprehensive scientific calculator, the Hewlett-Packard HP20S features easy-to-use algebraic entry and a built-in program library of over 100 scientific and mathematic functions. The library has frequently used functions like root finder, Simpson's rule of integration, complex number operations, 3x3 matrix operations, quadratic formula, and curve-fitting programs--all at the touch of a key. The HP20S also has essential trigonometry and math functions such as sine, cosine, tangent, exponential, and natural log and antilog functions.
Customer Reviews
|
Share your thoughts with other customers:
|
||||||||||||||||||||||
|
Most Helpful Customer Reviews
12 of 13 people found the following review helpful:
5.0 out of 5 stars
The best calculator of its type,
By
This review is from: HP HP20S Scientific Calculator (Office Product)
This is, quite simply, the best algebraic-notation calculator short of the graphical types. How is it superior? Let me count the ways:1. It has a 12-digit display, but it's not limited to 12 digits. If it needs more display room, it will scroll. 2. It uses commas for thousands separators. 3. It has the easiest-to-use percentage calculations I've ever used. 4. The display shows "PEND" when you've hit an operator key (+, -, etc.) and it's waiting for the operand. This is great when you're doing involved calculations interspersed with thinking or looking info up. With other calculators, you come back from your diversion and have to think about whether you hit the operator key yet or not. Worse, some calculators change their behavior if you hit an operator key more than once, so you can't hit the operator key again without consequences. 5. It's built really well, and the keys have a nice tactile feedback. 6. There are several other nice features, but I'm running out of space. Suffice it to say, whoever designed this calculator knew how to make it pleasant to use as well as functional. Most other calculators are either too simple to be useful or too complicated to be useful. The HP20S strikes the right balance for me. I have two now and would buy a 3rd in a heartbeat if I could find one, just to have a spare, just in case.
8 of 8 people found the following review helpful:
5.0 out of 5 stars
Good Calculator but beware of the newer version,
By A Customer
This review is from: HP HP20S Scientific Calculator (Office Product)
This calculator is a cousin of the 10B finacial calculator (now discontinued). It's a good calculator with good button feel and a lot of preprogrammed functions including stats. However, the newer models have the keys and faceplate markings written in new colors that are hard to see. The picture on this page is of the old version of the calculator. The colors on the new ones make the calculator much harder to use in my opinion. They seem to get lost on the brown background.
15 of 18 people found the following review helpful:
5.0 out of 5 stars
Best Mid-line Scientific Calculator On The Market,
By Kathy (Philadelphia) - See all my reviews
This review is from: HP HP20S Scientific Calculator (Office Product)
I bought my first HP 20S in 1988 when I started college. That one last about 8 years and then I bought another in 1996 which I am now replacing. These calculators are amazing. I work in a lab, and in the course of using them I have dropped them and spilled chemicals on them numerous times (they keys flooded but the calculator worked fine once it dried out), and through it all they keep on working. THe first calculator i replaced because they keys wore out, this last one finally got hit with a chemical solution it couldnt' handle. The 20S is very easy to use in an ergonomic sense because of the unique spacing of the keys. The way the calculator works in terms of which keys do what is very straightforward. The programmable nature is wonderful if you are doing repeated calculations. I wanted something that was a bit more advanced than the TI-35 I used in junior high school, but not something so complicated that i would never figure out to use it. This calculator fits the bill perfectly. I'm now buying my third HP 20S in the last 12 years, and I can't recommend it enough.
Share your thoughts with other customers: Create your own review
|
|
Tags Customers Associate with This Product(What's this?)Click on a tag to find related items, discussions, and people.
|
