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Hewlett Packard HP 20s Scientific Calculator PLEASE READ TESTED!

US $37.95
Was US $39.95 (5% off)What does this price mean?
Recent sales price provided by the seller
Condition:
Used
Hewlett Packard HP 20s Scientific Calculator with 3 Batteries and Original Case sleeve. There is ... Read moreabout condition

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Located in: Greeley, Colorado, United States
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Estimated between Fri, Jun 21 and Wed, Jun 26 to 43230
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eBay item number:156140889242

Item specifics

Condition
Used
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller Notes
“Hewlett Packard HP 20s Scientific Calculator with 3 Batteries and Original Case sleeve. There is ...
Display Size
Small
Features
LCD Display
Country/Region of Manufacture
Unknown
Bundle Listing
No
Color
Black
UPC
0088698000335
Brand
HP
Key Size
Regular
Type
Scientific
Power Source
Battery
Size
Handheld
Model
20s
MPN
HP20S

About this product

Product Information

Get ready to solve difficult math equations, including algebraic equations, quickly and easily. The HP-20S programmable scientific calculator is a wonderful accessory for students. The 20S will take them from middle school pre-algebra through college calculus and more advanced science and mathematics courses. Young mathematicians will progress rapidly through algebra with the 20S thanks to its intuitive algebraic entry system. This allows students to enter data into the calculator algebraic notation, just as it appears in test or homework questions. This feature is especially useful when doing complex mathematical operations of solving equations that require many steps. After writing their work out on paper as required, students can check their work with the 20S. If the student has the wrong answer, they can input each step into the calculator to find the error.The HP-20S scientific calculator will continue to serve students well as they progress to higher mathematics courses. It will display up to 12 digits at a time. Advanced calculus students can take advantage of the formula button for Simpson's Rule of Integration. Data science students will save time with the 20S when they use the built-in curve fitting programs. The standard programs in memory also include quadratic formulas, 3x3 matrix operations, and complex mathematical operations. To access the program library in memory, press left shift key, delete key, load key. You can then use the letters A-F to access program groups. A calls the root finder. B is for numeric integral programs. Choose C for complex number arithmetic. D accesses matrices, and E is the quadratic equation solver. F is for exponential, logarithmic, and power regression functions.Business professionals can also find plenty of use for this scientific calculator, which comes with over 150 essential functions. Some the standard conversion features on the 20S include distance in centimeters to inches and mass in pounds to kilograms. Baking Continental recipes become a breeze with the built-in volume conversions like milliliters to teaspoons, tablespoons, or fluid ounces. Distance conversions while traveling is a snap, with the pre-programmed mile to kilometer conversion function. Fashionistas will find the pre-programmed size conversion feature, including centimeters to inches, which is handy when purchasing clothing in European sizes.Students will enjoy the ease of the root-finding feature and the quadratic formula shortcut. Trigonometric functions available at the touch of a key include sine, cosine, and tangent. Other essential math shortcuts already programmed in include exponential, log, and antilog keys. Students can also input their own equations and programs to this Hewlett Packard calculator with the programmable keystroke feature. This lets the student automate specific routine equations or programs for certain classes and topics. Many teachers allow students to store specific equations in their calculator's memory for use during tests. The HP-20S fits in a laptop case, briefcase, or purse, so it's always at hand when you need it. Even though the calculator has a compact size, the keys are not, making them easy to see and use. This calculator comes with a vinyl Hewlett Packard slipcase to protect it through the years and requires three LR44 batteries.

Product Identifiers

Brand
HP
MPN
HP20S
UPC
0088698000335
Model
20s
eBay Product ID (ePID)
54857029

Product Key Features

Power Source
Battery
Size
Handheld
Key Size
Regular
Type
Scientific

Additional Product Features

Display Type
Regular
Digit Display
12 Digits
Family Line
Pioneer

Item description from the seller

Retro Games And Collectibles

Retro Games And Collectibles

100% positive feedback
26K items sold
Joined Aug 2000

Detailed seller ratings

Average for the last 12 months

Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (8,331)

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Fast Shipping, Product as Described, Excellent Packaging, Great Communication, Smooth Transaction, Thank You, AAA+++
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Past 6 months
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Product ratings and reviews

4.7
54 product ratings
  • 41 users rated this 5 out of 5 stars
  • 11 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Top favorable review

    HP 20S scientific calculator

    Very robust, reliable, algebrai function, touch sense keys, great layout, raised keys, easily fits into a shirt pocket, comprehensive manual. Purchased as a backup when my first one "dies".

    Verified purchase: YesSold by: jastacs_trinkets_n_treasures

  • Hewlett Packard HP 20S Scientific Calculator

    The HP 20S is an excellent Calculator. It is a do-it all scientific calculator, and despite being Algebraic Entry is very useful and compact. The button feel and accuracy are very attractive features of this calculator. *Self test by Pressing the [C] key and [y^x]. Press any key and begin the keyboard test left to right and top to bottom. *Reset by pressing [C] and [LN]. If you're looking for RPN, buy the HP32sii- they look very similar, but inside they are not. The 32sii costs twice as much, but is worth it. Related Calculators: The 20S is a part of the Pioneer Series of HP calculators made from 1989 until 2000 or 2001. The Pioneer 10-series contained the Business Calculators: the HP 10b, 14b, 17b, 17bii. The Pioneer 20-series contained the scientific (algebraic) calculators ...

  • I wouldn't recommend this calculator for school use, get a TI-30X for that.

    The Hewlett Packard Scientific Calculator Model 20s was their more "middle of the road" model that was first released mid-year 1986, but has a copyright of 1987 on the back. Which has to do with the fact that when Hewlett Packard released a new model calculator they released it mid year for the next model year like car companies did with their cars. But unlike car companies the model could go unchanged for years until they discontinued the model and replaced it with a new one. This particular calculator went unchanged all through its long lifespan, being discontinued in 1993, and being replaced with the 38s in 1994 which is still being made to this day, with some minor cosmetic changes from the original and a 2-line screen whereas the original only had a single-line ...

  • Solid basic scientific calculator.

    This is a very sturdy and well mad calculator. The keys are crisp and solid. The markings are very easy to read. I have only just begun using it. I used to have a 48GX and am preferential to the RPN style input. This uses algebraic. It's a fine inexpensive calculator. I have not used any of the programming functions.

  • HP-20S Scientific calculator

    The HP-20s is a great calculator. It features easy-to-use algebraic entry and a built-in program library of over 100 built-in scientific and mathematical functions. This powerful built-in program library eliminates the need to input frequently-used functions such as root finder, Simpson’s Rule of integration, complex number operations, 3x3 matrix operations, quadratic formula, and curve fitting programs. When using the HP-20s, these features are available at the touch of a key. Essential trig and math functions for scientific applications are of course available. Sine, cosine and tangent, or exponential, natural log and antilog functions are only a few of the functions that can be used with the 20s. The HP-20s performs English / metric conversions and fast conversions for mass, distance, ...