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Before Using the Calculator
- ▶Read This First
- ▶Initializing the Calculator
- ▶Calculator "Get Started" Screen
- ▶Precautions
- ▶Getting Started
Calculator Apps and Menus
Inputting Expressions and Values
- ▶Basic Input Rules
- ▶Inputting an Expression Using Natural Textbook Format (MathI/MathO or MathI/DecimalO Only)
- ▶Overwrite Input Mode (LineI/LineO or LineI/DecimalO Only)
Basic Calculations
- ▶Arithmetic Calculations
- ▶Fraction Calculations
- ▶Powers, Power Roots, and Reciprocals
- ▶Pi, Natural Logarithm Base e
- ▶Calculation History and Replay
- ▶Using Memory Functions
Changing Calculation Result Format
- ▶Using the FORMAT Menu
- ▶Standard and Decimal Conversion
- ▶Prime Factorization
- ▶Recurring Decimal Conversion (Recurring Decimal Calculations)
- ▶Improper Fraction and Mixed Fraction Conversion
- ▶Engineering Notation
- ▶Sexagesimal Conversion (Degree, Minute, Second Calculations)
Advanced Calculations
- ▶Function Analysis
- ▶Probability
- ▶Numeric Calculations
- ▶Angle Unit, Polar/Rectangular Coordinate, Sexagesimal
- ▶Hyperbolic, Trigonometric
- ▶Others
Registering and Using Defining Equations for f(x) and g(x)
Using QR Code Functions
Using Calculator Apps
Technical Information
- ▶Errors
- ▶Before Assuming Malfunction of the Calculator...
- ▶Replacing the Battery
- ▶Calculation Priority Sequence
- ▶Calculation Ranges, Number of Digits, and Precision
- ▶Specifications
Frequently Asked Questions
Replacing the Battery
If the screen shown below appears right after you turn on power, it means that remaining battery power is low.
A low battery is also indicated by a dim display, even if contrast is adjusted, or by failure of figures to appear on the display immediately after you turn on the calculator.
If this happens or the above screen appears, replace the battery with a new one.
Important!
Removing the battery causes all of the calculator’s memory contents to be cleared.
1. Press (OFF) to turn off the calculator.
To ensure that you do not accidentally turn on power while replacing the battery, attach the front cover to the front of the calculator.
2. As shown in the illustration, remove the battery cover, remove the battery, and then load a new battery with its plus (+) and minus (−) ends facing correctly.
3. Replace the battery cover.
4. Press to turn on the calculator.
5. Initialize the calculator.
(1) Press , select a calculator app icon, and then press
.
(2) Press , and then select [Reset] > [Initialize All] > [Yes].
Do not skip the above steps!