Casio SF-6990 Manual De Usuario
73
E
To perform constant calculations
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1. Enter the Calculator Mode.
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2
2. Enter the calculation, pressing the arithmetic operator
key twice. This will causes the “K” indicator to appear on
the display to indicate a constant calculation.
the display to indicate a constant calculation.
• You can use this constant calculation technique for
addition, subtraction, multiplication, and division.
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3. Press
& to display the initial result (in this case, 5).
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4. Press
& again to add 3 to the result (in this case, 5 + 3
= 8).
• You can repeat the above operation as many times as
you like. Each time you press
&, the previous result
obtained is added to, subtracted from, multiplied by, or
divided by the value to the left of the arithmetic operator.
divided by the value to the left of the arithmetic operator.
• To clear a constant calculation, press
AC
.
To correct errors in calculations
If you enter a wrong value, press
C
and then enter the correct value.
If you press the wrong arithmetic operator key (
!, @, #, $), simply press the
correct key before entering anything else.
About calculation errors...
Whenever an error occurs, the indicator “E” appears on the display.
E
‰.
Using the Calculator