Casio Calculator FX-991EX

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* Non Programmable

* GCSE/AS/A Level
Suitable for Cambridge International Examinations GCSE, AS & A Level.
* Number of Functions : 552
* Natural textbook display
: Display expression same as textbook. 
* 10 + 2 digits
10-digit mantissa + 2-digit exponential display. 
* Dot matrix display: 
High-resolution screen provides beautiful looking graphs every time.
* Icon menu: 
Specify the operation you want to perform by selecting an icon or inputting a number.
* Multi-replay: 
Quick and easy recall of previously executed formulas for editing and re-execution.
* Solar & Battery: 
Solar powered when light is sufficient, battery powered when light is insufficient. 
* Plastic keys: 
Designed and engineered for easy operation.
* Basic Statistics: 
Standard statistics functions such as Mean, SUM, Standard Deviation, and Regression
* Ratio
* Basic Mathematical Functions
: Trigonometric, Exponential logarithmic, etc.
* Table Generation
: You can create a numerical table based on that expression by registering a function expression. In addition, graph functions can be represented by graphs.
* Intermediate Statistics
: More statistical functions such as Paired-variable statistical calculation, Quartiles and List display functions for speedy and thorough learning .
* Base-n calculation
: Binary/Octal/Hexadecimal
* Scientific Constants
: You can use constant symbols used in physics, science classes.
* Vector
* Advanced Statistics
: Support high level statistics by 7 kinds of advanced distribution calculation.
* Inequality
* List based STAT-data editor: 
Viewing and editing of input data in list format, showing data groups (x-data, y-data, frequency) and surrounding data.
* Differentiation
* Spreadsheet
* Non Graphing
* Matrix
* Equation
* Integration
* High Resolution
: We are choosing a model with higher definition in our non-programmable model and a higher definition model with Programmable model.
* Complex number calculation
* Metric conversion function
You can convert a number in one unit to a number in a different unit.
* QR Code
: You can see graphs on smartphones etc. using QR Code.



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