Casio FX260HA User Manual
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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.
Display
For example: [2] [+] [+] [=] 4
Each time you press [=], it will add 2 to the displayed number
[3] [+] [+] [4] [=] 7
[5] [=] 8
[10] [=] 13
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] 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].
[SHIFT] [d/c] Converts the displayed value between mixed number and improper
fraction.
[a b/c] Converts the displayed value between fraction and decimal form.
NOTE: After entering a fraction using a b/c, pressing [=] will display it in simplest form.
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References the Casio FX-260 Solar User’s Guide Casio FX-260 Scientific calculator