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CASIO

User´s Guide

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Getting Started

Removing the Hard Case

Before using the calculator, slide its hard case downwards to remove it, and then affix the hard case to the back of the calculator as shown in the illustration below.

Turning Power On and Off

Press to turn on the calculator.

Press (OFF) to turn off the calculator.


Note

The calculator also will turn off automatically after approximately 10 minutes of non-use. Press the key to turn the calculator back on.

Adjusting Display Contrast

1. Press (SETUP)(CONT).

2. Use and to adjust display contrast.

3. After the setting is the way you want, press .


Important!

If adjusting display contrast does not improve display readability, it probably means that battery power is low. Replace the battery.

Key Markings

Pressing the or key followed by a second key performs the alternate function of the second key. The alternate function is indicated by the text printed above the key.

images/0005_CY234-235_05_GettingStarted_002_141201_CY-235_start_002.bin(1) Keycap function (2) Alternate function


The following shows an example of how an alternate function operation is represented in this manual.
Example: (sin-1)* 1* Indicates the function that is accessed by the key operation () before it. Note that this is not part of the actual key operation you perform.

The following shows an example of how a key operation to select an on-screen menu item is represented in this manual.
Example: (COMP)* * Indicates the menu item that is selected by the number key operation () before it. Note that this is not part of the actual key operation you perform.

The cursor key is marked with four arrows, indicating direction, as shown in the illustration nearby. In this manual, cursor key operation is indicated as , , , and .

Reading the Display

The two-line display makes it possible to view both the input expression and its result at the same time.

(1) Input expression
(2) Calculation result
(3) Indicators


If a indicator appears on the right side of the calculation result, it means the displayed calculation result continues to the right. Use and to scroll the calculation result display.

If a indicator appears on the right side of the input expression, it means the displayed calculation continues to the right. Use and to scroll the input expression display. Note that if you want to scroll the input expression while both the and indicators are displayed, you will need to press first and then use and to scroll.

Display indicators

This indicator: Means this:
The keypad has been shifted by pressing the key. The keypad will unshift and this indicator will disappear when you press a key.
The alpha input mode has been entered by pressing the key. The alpha input mode will be exited and this indicator will disappear when you press a key.
M There is a value stored in independent memory.
STO The calculator is standing by for input of a variable name to assign a value to the variable. This indicator appears after you press (STO).
RCL The calculator is standing by for input of a variable name to recall the variable's value. This indicator appears after you press .
STAT The calculator is in the STAT Mode.
The default angle unit is degrees.
The default angle unit is radians.
The default angle unit is grads.
FIX A fixed number of decimal places is in effect.
SCI A fixed number of significant digits is in effect.
Math Natural Display is selected as the display format.
Calculation history memory data is available and can be replayed, or there is more data above/below the current screen.
Disp The display currently shows an intermediate result of a multi-statement calculation.

Important!

For some type of calculation that takes a long time to execute, the display may show only the above indicators (without any value) while it performs the calculation internally.

Using Menus

Some of the calculator's operations are performed using menus. Pressing or , for example, will display a menu of applicable functions.

The following are the operations you should use to navigate between menus.

You can select a menu item by pressing the number key that corresponds to the number to its left on the menu screen.

The indicator in the upper right corner of a menu means there is another menu below the current one. The indicator means another menu above. Use and to switch between menus.

To close a menu without selecting anything, press .

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