Casio fx-7400G PLUS Basic Operation - Manual (Page 24)

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Chapter 2 Basic Calculations
k k k k k Errors
An error message appears on the display and calculation stops whenever the calcu-
lator detects some problem. Press A to clear the error message.
The following is a list of all the error messages and what they mean.
Ma ERROR - (Mathematical Error)
• A value outside the range of
±9.99999999 × 10 99 was generated during a calcu-
lation, or an attempt was made to store such a value in memory.
• An attempt was made to input a value that exceeds the range of the scientific
function being used.
• An attempt was made to perform an illegal statistical operation.
Stk ERROR - (Stack Error)
• The calculation being performed caused the capacity of one of the stacks to be
exceeded.
Syn ERROR - (Syntax Error)
• An attempt to use an illegal syntax.
Arg ERROR - (Argument Error)
• An attempt to use an illegal argument with a scientific function.
Dim ERROR - (Dimension Error)
• An attempt to perform an operation with two or more lists when the dimensions of
the lists do not match.
In addition to the above, there are also a Mem ERROR and Go ERROR. See “Error
Message Table” for details.
k k k k k How to Calculate Memory Usage
Some key operations take up one byte of memory each, while others take up two
bytes.
1-byte operations: 1, 2, 3, ..., sin, cos, tan, log, In, ,
π, etc.
2-byte operations: d / dx (, Xmin, If, For, Return, DrawGraph, SortA(, Sum, etc.
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