Casio FX-CG20 AU User Manual page 541

When you see
It means this:
this message:
Non-Real Calculation that produces a complex
ERROR number when Real is specified for the
Complex Mode setting on the Setup
screen, even though the argument is a
real number.
Can't Simplify Fraction simplification was attempted
using the 'Simp function (page
2-26), but simplification could not be
performed using the specified divisor.
Example: Specifying a divisor of 3 to
simplify the fraction 4/8.
Can't Solve! A Solve calculation could not obtain a
Adjust initial solution within the specified range.
value or
bounds. Then
try again
Time Out A Solve calculation was unable to
satisfy convergence conditions.
Conversion • Attempting to use the unit conversion
ERROR command to convert between two
units in different categories.
• Executing a conversion calculation
using the same command twice in a
conversion expression.
Invalid Type An illegal data type is specified.
Underflow When performing a function calculation
or an equation calculation, you input
an extremely small value for one of
the arguments or you input values for
multiple arguments that are extremely
removed from each other.
Example: ∑(X,X,1,2,1E–50),
1 99
E
x x
2 +1 99 +1 –99=0, etc.
E E
So you need to do this:
Change the Complex Mode setting to
something other than Real.
Specify a different divisor or execute
'Simp without specifying any divisor.
• Change the specified range.
• Correct the input expression.
If you are performing a Solve
calculation, try changing to the initial
default estimated value.
In a conversion expression, specify
two different commands that are in
the same category.
Specify valid data.
Depending on the calculation
contents, the underflow will occur and
the calculation will not be performed.
Change the value(s) and try again.
α
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