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New Casio FX-991ES Plus Scientific Calculator With Free Worldwide Shipping - Picture 1 of 1
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New Casio FX-991ES Plus Scientific Calculator With Free Worldwide Shipping

RICH-Herbal Store
  • (3620)
C $49.99
ApproximatelyUS $36.50
Condition:
New
Last One / 25 sold
Breathe easy. Free shipping and returns.
This one's trending. 25 have already sold.
Shipping:
Free Economy Int'l Shipping. See detailsfor shipping
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Located in: begumganj, India
Delivery:
Estimated between Tue, Jun 11 and Tue, Jul 16 to 43230
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
This item has an extended handling time and a delivery estimate greater than 13 business days.
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eBay item number:401912756320
Last updated on Mar 04, 2024 16:01:55 PSTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Type
Scientific
MPN
Does Not Apply
Brand
Casio
UPC
4971850182276

Item description from the seller

RICH-Herbal Store

RICH-Herbal Store

93.9% positive feedback
25K items sold
Visit storeContact
Joined Nov 2012
Usually responds within 24 hours

Detailed seller ratings

Average for the last 12 months

Accurate description
4.7
Reasonable shipping cost
4.9
Shipping speed
4.7
Communication
4.7

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Seller feedback (4,244)

4***_ (8)- Feedback left by buyer.
More than a year ago
Verified purchase
took a while. Most impressed with how well the item was packaged. would recommend
p***n (107)- Feedback left by buyer.
More than a year ago
Verified purchase
The package arrived quickly and was quality packed. I recommend this seller
8***2 (781)- Feedback left by buyer.
More than a year ago
Verified purchase
very serious seller
See all feedback

Product ratings and reviews

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4.8
207 product ratings
  • 186 users rated this 5 out of 5 stars
  • 13 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
  • 7 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 120 reviews
  • by hendersonnh
    May 18, 2020Top favorable review

    Equation Solver

    I bought the Casio FX-991 ES. Fantastic for using Newton's law of approximation to solve equations like sinδ = a + bcos(δ + β) (a, b, β constants). Just substitute the ANS key for δ in the equation and keep hitting the "=" button till the answer doesn't change (converges).

    Verified purchase: YesCondition: NewSold by: discountwatch-llc

  • by twilliams9279
    Mar 14, 2011

    Easy to Use

    I bought this calculator because it was the best allowed for use on my exams (best in terms of its features and capablities). The "pretty print" font feature is great too. It can even perform integration and differentiation of a function at a specific value of the independent variable (or over a specified nonvariable range. Unfortunately, it can't produce the function that is the derivative, etc. of a given function like the TI89 (but then if it could it probably wouldn't be allowed on your exam anyhow). Anyway, this thing is pretty decent for calculus and physics - for stats, use a TI83 instead if you can. It is more than adaquate for business types and decent for science students too assuming your professor is against more advanced models. Engineers already know they'll be needing ...

  • by aguyonthebuy
    Sep 04, 2018

    Best Simple Display Calculator I've Used

    Best non graphing calculator for engineering courses I've used. Best part is being able to plug in human readable fractions.

    Verified purchase: YesCondition: NewSold by: ahmed1164

  • by sousabaye
    Jan 28, 2017

    Precise with great features

    I'm a student and this calculator helps me a lot to accomplish the math exercises required by class. Many functions are included, more than I will need actually but I loved the design, the big screen, the price and the ease of use.

    Verified purchase: YesCondition: NewSold by: ahmed1164

  • by helius619
    Sep 29, 2020

    Great for Digital Systems Design

    I recommend this model for CS studies and Electrical Engineering. It's real easy to calculate in non decimal base: base 2 8 and 16 and to convert it back to decimal. I think there are calculator models with a more robust screen. I guess that's why it's relatively cheap

    Verified purchase: YesCondition: NewSold by: easystreet_hangout

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