Casio SERIES FX-9860G - Manual (Page 72)

20070201
2-1-5
Basic Calculations
# Most of the calculator’s keys are inoperative
while an error message is displayed.
Press J to clear the error and display the
error position (see page 1-3-5).
# See the “Error Message Table” on pag e
α-1-1
for information on other errors.
k Multiplication Operations without a Multiplication Sign
You can omit the multiplication sign (
×) in any of the following operations.
• Before Type A functions (1 on page 2-1-3) and Type C functions (6 on page 2-1-4),
except for negative signs
Example 2sin30, 10log1.2, 2
'
3, 2Pol(5, 12), etc.
• Before constants, variable names, memory names
Example 2
π, 2AB, 3Ans, 3Y
1
, etc.
• Before an open parenthesis
Example 3(5 + 6), (A + 1)(B – 1), etc.
k Overfl ow and Errors
Exceeding a specifi ed input or calculation range, or attempting an illegal input causes an
error message to appear on the display. Further operation of the calculator is impossible
while an error message is displayed. The following events cause an error message to appear
on the display.
• When any result, whether intermediate or fi nal, or any value in memory exceeds
±9.999999999 × 10
99 (Ma ERROR).
• When an attempt is made to perform a function calculation that exceeds the input range
(Ma ERROR).
• When an illegal operation is attempted during statistical calculations (Ma ERROR). For
example, attempting to obtain 1VAR without data input.
• When an improper data type is specifi ed for the argument of a function calculation
(Ma ERROR).
• When the capacity of the numeric value stack or command stack is exceeded (Stack
ERROR). For example, entering 25 successive ( followed by 2 + 3 * 4 w.
• When an attempt is made to perform a calculation using an illegal formula (Syntax
ERROR). For example, 5 ** 3 w.