eBay

Product Description

Description：
Advanced Functions: The production offers a comprehensive set of advanced functions, including complex number calculations, matrix calculations, equation solving, and statistical calculations. It also supports vector calculations and differentiation/integration.

Natural Textbook Display: The calculator features a natural textbook display, which allows you to view and input mathematical expressions and equations exactly as they appear in textbooks. This feature makes it easier to understand and verify calculations.

High-resolution LCD: The high-resolution LCD screen ensures clear and crisp display of numbers, symbols, and graphs. The large screen allows for easy reading and reduces the chances of errors.

Spreadsheet Functionality: With its spreadsheet function, the calculator enables you to create and manage tables of values for data analysis. This feature is particularly useful for statistical calculations and scientific experiments.

Multi-replay Function: The multi-replay function allows you to backtrack and edit calculations step-by-step, making it convenient for reviewing and correcting errors.

Specifications:

Model: Fx-991ex 552（Functionally equivalent alternatives）

Display: Natural Textbook Display, high-resolution LCD

Functions: Complex number calculations, matrix calculations, equation solving, statistical calculations, vector calculations, differentiation/integration

Spreadsheet Function: Yes

Language: English (UK)

INSTRUCTIONS:

Power On/Off:

To turn on the calculator, press the "ON" button.

To turn off the calculator, press the "OFF" button.

Basic Arithmetic Operations:

Addition: Use the "+" key.

Subtraction: Use the "-" key.

Multiplication: Use the "x" key.

Division: Use the "/" key.

To perform calculations, enter the numbers using the numeric keys and press the corresponding operation key.

The above is a general overview of the instructions for scientific calculators. For detailed instructions and specific usage examples, please refer to the user manual that comes with the calculator for more information.

Packaging includes:
1X Calculator
1X instruction manual

Notes:

1. Hand-measured dimensions may vary by 1-3mm. Your understanding is appreciated.

2. Actual product colours may differ slightly from images due to monitor and lighting variations. Thank you for your understanding.

Payment
Shipping
Returns
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1. Paypal is the only accepted paying method in our store.

2. Buyers are responsible for additional COD charges, VAT, Custom fee and Duty for importation if there are any. Because, our prices are unable to include above fees, as the custom policies are different in every territories. But, we'd like to assist you to receive the goods smoothly if there are anything we can do here.

We would ship the product within 1-3 working days upon receipt of payment, our goal is: ship it as fast as we can.

But sometimes international delivery is highly depended on the courier company and local customs/duties. If you do not receive your item on time, please contact us immediately for further assistance.

Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility. Please check with your country customs office to determine what these additional costs will be prior to bidding/buying.

Shipping Method	Tracking	Shipping Destination	Time
Economy	No	USA,Canada,UnitedKingdom,Austrilia,France,Germany,Others	15-30 working day
ePacket	Yes	USA only	10-20 working days
Standard	Yes	USA,Canada,UnitedKingdom,Austrilia,France,Germany,Others	7-19 working days
Expedited	Yes	USA,Canada,UnitedKingdom,Austrilia,France,Germany,Others	3-7 working days

DHL can not reach to few remote areas in your country,if you choose Express and living remote areas. You should pay the additional shipping charge. If your area belongs to remote areas, the parcel can't reach, or you need to pay more freight, our customer service will contact you.

The item will be sent to your address listed in the Ebay. Please verify your address during checkout. We are not responsible for any wrong or undeliverable addresses.

If you need to add the tracking number, be sure to contact customer service before making orders especial for the people comes from the country of Eastern Europe, the Middle East and South American. It needs to pay the extra shipping cost!

1.If item is defective and not working on arrival, please contact us within 7 days of receiving the defective for repair or refund.Refund will only be provided for products damaged in the post or which is defective. Item may be returned within 14 days of purchase upon your receipt.All items returned must contain all original packaging materials.

2.This item have 3 months warranty. We offer free repairing service within 6 months from the date of purchased. If damaged is caused by undue wear and tear, dirt, misused, improper installation/operation, accident or repaired by unauthorized person, the warranty becomes void.

3.All returns must have prior authorization. Please note that we will not accept any returns that have not been authorized by us. Please contact us before you return the item.

4.Buyer is responsible for the return postage. If you ask for a refund during valid period, we will offer you a refund without postage charges. Shipping and handling charges, insurance are not refundable in any case. We are only responsible for once re-sending expense for replacement due to defects.

1.We have always been doing our best to provide the best service and reliable products for every customer.

2.Please do not hesitate to contact us to resolve the issues.We will reply your emails and questions within 24 hours.

3.Our working hours: Monday to Saturday, 9:00 AM to 6:30 PM(Beijing Time).

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