■ How can I change a fraction form result produced by a division operation to decimal form?

→ While a fraction calculation result is displayed, press and then select [Decimal], or press (). To have calculation results initially appear as decimal values, change the Input/Output setting on the SETTINGS menu to MathI/DecimalO.

■ What is the difference between Ans memory, PreAns memory, and variable memory?

→ Each of these types of memory acts like "containers" for temporary storage of a single value.
Ans Memory: Stores the result of the last calculation performed. Use this memory to carry the result of one calculation on to the next.
PreAns Memory: Stores the result of calculation before the last one. PreAns memory can be used only in the Calculate app.
Variables: This memory is helpful when you need to use the same value multiple times in one or more calculations.

■ How can I find a function I was using with an older CASIO calculator model on this calculator?

→ This calculator’s functions can be accessed from the CATALOG menu that appears when you press . For details, see the sections below.
"Using the CATALOG Menu"
"Advanced Calculations"

■ With an older CASIO calculator model, I pressed to change the calculation result display format. What should I do with this calculator?

→ While a calculation result is displayed, press . Use the menu that appears to select the display format you want. For details, see "Changing Calculation Result Format".

■ How can I find out which calculator app I am currently using?

→ Press . This causes the icon of the calculator app you are currently using to become highlighted.

■ How do I calculate sin2 x

→ For example, to calculate sin2 30 =  ¹₄, enter the calculation below.

■ Why can’t I input (i) or calculate a complex number?

→ You cannot use the Calculate app to input i or to perform complex number calculations. Use the Complex app for such calculations.

■ Why doesn’t the Verify indicator () disappear?

→ To make the indicator that appears while Verify is enabled (Verify ON) disappear, perform the following operation: – [Verify OFF].
For more information about Verify, see "Using Verify".

■ Why does the battery icon () appear right after the calculator is turned on?

→ The battery icon indicates that battery power is low. If you see this icon, replace the battery as soon as possible. For details about battery replacement, see "Replacing the Battery".

■ How can I return the calculator to its initial default settings?

→ Perform the procedure below to initialize calculator settings (except for Contrast and Auto Power Off).