Casio fx-991W Calculator User Manual


 
E-10
k Error Locator
•Pressing r or e after an error occurs displays the
calculation with the cursor positioned at the location
where the error occurred.
k Exponential Display Formats
This calculator can display up to 10 digits. Larger values
are automatically displayed using exponential notation. In
the case of decimal values, you can select between two
formats that determine at what point exponential notation
is used. Press
F F F F 3 1
(
or
2
)
to select
NORM 1 or NORM 2.
NORM 1
With NORM 1, exponential notation is automatically used
for integer values with more than 10 digits and decimal
values with more than two decimal places.
NORM 2
With NORM 2, exponential notation is automatically used
for integer values with more than 10 digits and decimal
values with more than nine decimal places.
•All of the examples in this manual show calculation re-
sults using the NORM 1 format.
k Answer Memory
•Whenever you press = after inputting values or an ex-
pression, the calculated result is automatically stored in
Answer Memory. You can recall Answer Memory con-
tents by pressing
g.
•Answer Memory can store up to 12 digits for the mantissa
and two digits for the exponent.
•Answer Memory contents are not changed if the opera-
tion performed by any of the above key operations re-
sults in an error.