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General| Brand | Casio |
|---|---|
| Model | FX-991W |
| Category | Calculator |
| Language | English |
Instructions for detaching the calculator cover.
Instructions for reattaching the calculator cover.
Symbol for personal injury or material damage if ignored.
Precautions for handling, inserting, and storing batteries.
Warning against disposing of the calculator by burning.
Notes on illustrations, manual changes, and liability.
Instructions for first use and regular battery replacement.
Avoid extreme temperatures, humidity, dust, and physical impact.
Guide on cleaning the calculator exterior with appropriate materials.
Explains different calculation and display modes of the calculator.
Manage input capacity, corrections, replay, and error location.
Setting display formats and using answer memory.
Using memory for storing and recalling values.
Storing and deleting data in memory variables (A-F, M, X, Y).
Performing calculations with fractions and conversions.
Calculating trigonometric and inverse functions.
Calculating hyperbolic and inverse hyperbolic functions.
Using common and natural logarithm functions.
Calculating roots, powers, and factorials.
Setting display formats for fixed, scientific, and rounding.
Performing calculations in engineering notation.
Using engineering symbols in calculations.
Converting between polar and rectangular coordinates.
Performing statistical calculations for standard deviation.
Rules for entering data for statistical analysis.
Calculating linear regression models.
Calculating quadratic regression models.
Finding the magnitude and angle of complex numbers.
List of available metric and other unit conversions.
Input ranges for binary, octal, and hexadecimal numbers.
Examples of binary, octal, and hexadecimal calculations.
Steps to troubleshoot unexpected results or errors.
Explains common error messages and their causes.
Cause and action for math, syntax, and argument errors.
Cause and action for stack overflow errors.
Step-by-step guide to replace the calculator battery.
Explanation of the auto power off feature and how to reactivate.
Details on battery types and expected battery life for models.
Calculator dimensions, weight, power consumption, and temperature.
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