Free Shipping!
Description
xWith a high-resolution LCD screen, the fx-991EX allows for more information to be displayed for applications like spreadsheets and 4x4 matrix calculations.
Product features:Non Programmable,Non Graphing,Number of Functions : 552
Product type:Non Programmable,Non Graphing
Number of digits:10 + 2 digits
Liquid crystal display:3-digit comma markers,Natural textbook display,Icon menu,Dot matrix display,High Resolution
Key characteristics:Plastic keys
Key functions:Fast-typing function (2-key rollover),Negative Sign,Power Off
Memory:Variables: 9,Variables List,Independent Memory (M / M+ / M-),Answer Memory,Memory Protection,Reset Function
Power supply:Solar & Battery,Approximate battery life Main 2 years,Auto Power Off
Accessories:Hard Case
Display format settings:Number Format: Fix,Number Format: Sci,Number Format: Norm,Engineering Symbol,Engineering Notation,Toggling Calculation Results,Fraction / Decimal Conversion (SHIFT＋＝)
Basic calculation:Basic Calculation,Bracket Calculation,Fraction Calculation,Degree, Minute, Second (Sexagesimal) Calculations,Reciprocal Calculation,Percent Calculation (scientific calculator function),Ratio calculation,Factorial Function,π,Calculation with √ and π,Rounding Function
Advanced calculation:Transcendental number: e,Base-n calculation,Logical Operators,Complex number calculation,Matrix calculations,Vector calculations,Differential calculation,Integration calculation
Applied calculation:Multi-statement Command (:),Continuous Calculation,Replay Function,Multi-replay Function,UNDO,CALC Function,SOLVE Function
Basic functions:Basic Mathematical Functions,Number of Functions : 552,Independent Key x,Absolute Value Calculation,Power Function (Square),Power Function (Cube),Power Function,Power Function (Square Root),Trigonometric Function,Inverse Trigonometric Function,Hyperbolic / Inverse Hyperbolic Function,Exponential Calculation,Logarithmic Calculation,Log not base 10,Coordinate Conversion,Combination / Permutation,Prime Factorization,Random Number Generation,Random Integer Generation,Summation
Other functions:Spreadsheet,Equation,Inequality Calculations
Physics- and chemistry-related functions:Scientific Constants,Metric conversion function
Statistical data:List based STAT-data editor
Statistical calculation:Statistics Function,Basic Statistics,Intermediate Statistics,Advanced Statistics,Distribution Calculations
Permitted in exams:GCSE/AS/A Level
Connection to peripheral devices:QR Code
Shipping & Return
xShipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
- Choosing a selection results in a full page refresh.