Casio 300 PLUS Manual De Usuario

20050501

k Selecting a Soft Keyboard Style

Tap one of the tabs along the top of the soft keyboard (9, 0, (, or )) to select
the keyboard style you want.

1-6-3

Input

To display the 2D
keyboard

Tap here.

This section includes a number of examples that illustrate how to perform basic input
procedures. All of the procedures assume the following.

• The Main application is running.

For details, see “Starting a Built-in Application” on page 1-4-2.

• The soft keyboard is displayed.

For details, see “Using the Soft Keyboard” on page 1-6-1.

k Inputting a Calculation Expression

You can input a calculation expression just as it is written, and press the 

E key to execute

it. The ClassPad automatically determines the priority sequence of addition, subtraction,
multiplication, division, and parenthetical expressions.

• Before starting any calculation, be sure to clear the ClassPad by pressing 

c.

See Chapter 2 for more information about inputting expressions.

• Use the 

z or - key to input the minus sign before a negative value.

Example 1: To simplify –2 + 3 – 4 + 10

u ClassPad Operation

cz2+3-4+10E

Using the soft keyboard
Tap the keys of the math (mth) keyboard or the 2D keyboard to input the calculation
expression.

c9-c+d-e+baw

When the soft keyboard is not on the touch screen, press the 

k key, or tap the O

menu and then tap [Keyboard]. This causes the soft keyboard to appear on the display.