Casio fx-260 User Manual page 28

• In a series of calculations, press
result is displayed to clear only the last calculation per-
formed.
• To change the operator key (
etc.) you just pressed, simply press the correct operator
key. In this case, the operator of the last key you press is
used, but the operation retains the order of precedence of
the operation for the first key you pressed.
kOverflow or Error Check
The following conditions make further calculation impossi-
ble.
a. When a result (whether intermediate or final) or a
t o t a l a c c u mu l a t e d i n m e m o r y i s g r e a t e r t h a n
±9.999999999
display.)
b. When function calculations are performed using a value
that exceeds the input range. ("–E–" indicator appears
on the display.)
c. When an illogical operation (such as an attempt to calcu-
late o and σ
calculations. ("–E–" indicator appears on the display.)
d. When an illegal mathematical operation (such as division
by zero) is performed. ("–E–" indicator appears on dis-
play.)
e. The total number of nested parentheses levels exceeds
six, or when more than 18 pairs of parentheses are used.
("– 1–" indicator appears on the display.)
• To clear any of the above conditions, press
form the calculation from the beginning.
99
10 . ("–E–" indicator appears on the
while n
n
— 26 —
k
+ ,
,
0) is performed during statistical
while an intermediate
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, , ,
t
As
, ,
and per-