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Hewlett Packard HP 20s Scientific Calculator SEALED NOS NEW Vintage with Manual

US $199.99
ApproximatelyAU $311.32
or Best Offer
Condition:
Brand New
More information - About this item condition
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Postage:
Located in: Macon, Georgia, United States
Delivery:
Varies
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Payments:
     Diners Club

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eBay item number:197130752873

Item specifics

Condition
Brand New
Display Size
Small
Color
Black
Features
LCD Display
Bundle Listing
No
Country/Region of Manufacture
Unknown
UPC
0088698000335

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

About this seller

The Cook Boys

98.4% positive Feedback7.7K items sold

Joined Aug 2020
Hello! Welcome to my eBay shop! If you're interested in anything please send an offer I'm open to making deals anytime! My product is sourced from Liquidation, Storage units, yard/estate sales and bin ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage costs
4.6
Postage speed
5.0
Communication
5.0

Seller feedback (2,416)

All ratings
Positive
Neutral
Negative
  • l***a (22)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    used but it’s like new , didn’t come with the ubsc cable but everything was brand new and it was cheap so it’s still brilliant. Packaging was exquisite, like beautiful. It’s exactly like how it is described in the photo. The shipping was quick and came 3 days early. I would definitely buy from this seller again his communication was beautiful , I loved it
  • t***i (206)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    High quality product, well packaged, expedient shipping, excellent communication, tremendous value, product as described, seller highly recommended A+++ ★♥¨*:•.FANTASTIC.•:*¨¨*:•.EBAYER.•:*¨¨*:•.THANK YOU.•:*¨¨*♥★
  • p***l (47)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Brand new, as promised in the item description, and packaged securely to avoid damage. It arrived about as fast as can be expected from eBay International Shipping and while shipping didn't come cheap, the seller helped to offset the cost by accepting an offer below list price. I figure I saved about 15 percent than if I had bought this from that online retailer (you know the one) so this was very good value for money.

Product ratings and reviews

4.7
40 product ratings
  • 32 users rated this 5 out of 5 stars
  • 7 users rated this 4 out of 5 stars
  • 0 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

Good value

Would recommend

Good quality

Most relevant reviews

  • Top favourable 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

  • Spot on.

    All though the description of the calculator's condition was as stated "Mint", was entirely true. You couldn't ask for a better price. I was extremely disappointed in the packaging. Simple bubble wrap envelope, to protect a "Mint condition" calculator, is not sufficient. All that said beautiful product and short arrival time is a plus.

    Verified purchase: YesCondition: Pre-ownedSold by: minimarket63

  • Unit WAS in original clam shell packaging with manual still shrink wrapped.

    I absolutely love it. The heft and "key feel" are unavailable on calculators in the current market.

    Verified purchase: YesCondition: Pre-ownedSold by: transdata123

  • Calculator overview

    Calculator is in excellent condition, clear display, and limited keypad operations. Most of the keypad is functional except the + - * + buttons.

    Verified purchase: YesCondition: Pre-ownedSold by: dmsthrift

  • Excellent Product Description

    Replacing an old calculator that I had for 20 years. Good quality and value.

    Verified purchase: YesCondition: Pre-ownedSold by: ezthrifters