Casio fx-991ZA PLUS II User Manual page 86

• You are trying to perform a calculation with matrices or vectors whose
dimensions do not allow that type of calculation.
Action:
• Specify the dimension of the matrix or vector and then perform the
calculation again.
• Check the dimensions specified for the matrices or vectors to see if
they are compatible with the calculation.
Variable ERROR (SOLVE feature only)
Cause:
• You did not specify a solution variable, and there is no X variable in
the equation you input.
• The solution variable that you specified is not included in the equation
you input.
Action:
• The equation you input must include an X variable when you do not
specify the solution variable.
• Specify a variable that is included in the equation you input as the
solution variable.
Can't Solve Error (SOLVE feature only)
Cause:
• The calculator could not obtain a solution.
Action:
• Check for errors in the equation that you input.
• Input a value for the solution variable that is close to the expected
solution and try again.
Insufficient MEM Error
Cause:
• An attempt to generate a numerical table in the TABLE Mode whose
conditions cause it to exceed the maximum number of allowable rows.
The maximum number of rows is 30 when "f(x)" is selected for the
setup menu table setting and 20 when "f(x),g(x)" is selected.
Action:
• Narrow the table calculation range by changing the Start, End, and
Step values, and try again.
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