Casio fx-260 Training Manual - Page 4

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FX 260 Training guide

Constant calculations

You can perform "constant" calculations by setting an automatic constant to continually

add, subtract, multiply, or divide. Pressing [+], [ - ], [x], or [÷] twice after inputting a

number, will make that number a constant. "K" will be shown on the display, indicating

that a constant is being used.

For addition, enter [constant] [+] [+]. When you press [=], the constant will be added to

the number on the display. Pressing [AC] clears the constant.

For example: [2] [+] [+] [=]

Fraction calculations and simplification

•

Use the COMP mode for fraction calculations.

•

You can perform addition, subtraction, multiplication, and division.

•

The result of a calculation that mixes fractions and decimal values is displayed as

a decimal value.

•

You can enter a fraction using the [a b/c] key.

•

The total number of digits, including division marks, cannot exceed 10.

Be sure to press [AC] when beginning a new calculation.

[a b/c]

[SHIFT] [d/c]

[a b/c]

NOTE: After entering a fraction using a b/c, pressing [=] will display it in simplest form.

References the Casio FX-260 Solar User's Guide

Each time you press [=], it will add 2 to the displayed number

[3] [+] [+] [4] [=]

[5] [=]

[10] [=]

Inputs the integer part of a fraction (mixed number) and the numerator

(b) /denominator (c) of a fraction in the form b/c.

Example: to input ½ , press [1] [a b/c] [2].

Example: to input 2 ½, press [2] [a b/c] [1] [a b/c] [2].

Converts the displayed value between mixed number and improper

fraction.

Converts the displayed value between fraction and decimal form.

Display

Casio FX-260 Scientific calculator