Cause:

There is a problem with the format of the calculation you are performing.

Action:

Make necessary corrections.

Cause:

The intermediate or final result of the calculation you are performing exceeds the allowable calculation range.

Your input exceeds the allowable input range (particularly when using functions).

The calculation you are performing contains an illegal mathematical operation (such as division by zero).

While using an app that does not support complex numbers or while a screen that does not accept input of complex numbers is displayed, you attempted to execute a calculation that includes a variable where a complex number is stored.

When Verify is enabled (Verify ON) while using the Complex app, you entered an inequality that includes a complex number.

Action:

Check the input values, reduce the number of digits, and try again.

When using a variable as the argument of a function, make sure that the variable value is within the allowable range for the function.

To execute a calculation that includes a variable where a complex number is stored, while using an app that does not support complex numbers or while a screen that does not accept input of complex numbers is displayed, change the value stored to the variable to a real number.

You cannot use Verify in the Complex app to determine if an inequality that includes a complex number is true. You can determine the truth of an equation that includes a complex number.

Cause:

The calculation you are performing has caused the capacity of the numeric stack or the command stack to be exceeded.

The calculation you are performing has caused the capacity of the matrix or vector stack to be exceeded.

Action:

Simplify the calculation expression so it does not exceed the capacity of the stack.

Try splitting the calculation into two or more parts.

Cause:

There is a problem with the argument of the calculation you are performing.

Action:

Make necessary corrections.

Cause:

You are trying to perform a calculation with matrices or vectors whose dimensions do not allow that type of calculation.

Action:

Check the dimensions specified for the matrices or vectors to see if they are compatible with the calculation.

Cause:

An attempt to execute Solver for an expression input without any variable included.

Action:

Input an expression that includes a variable.

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.

Cause (Table app):

An attempt to generate a number table in the Table app whose conditions cause it to exceed the maximum number of allowable rows.

Action:

Narrow the table calculation range by changing the Start, End, and Step values, and try again.

Cause (Spreadsheet app):

During batch input in the Spreadsheet app, input for Range is outside the allowable range or is a cell name that does not exist.

Action:

For Range, input a cell name within the range of A1 through E45, using the syntax: "A1:A1".

Cause (Math Box app):

The value input as the Attempts (number of trials) for Dice Roll or Coin Toss is outside the allowable range or is a non-integer value.

Action:

For Attempts, input an integer value that is within the allowable range.

Cause (differential or integration calculation):

The current differential or integration calculation ends without the ending condition being fulfilled.

Action:

Try increasing the tol value. Note that this also decreases solution precision.

Cause (Distribution app):

The current distribution calculation ends without the ending condition being fulfilled.

Action:

Change the value of each parameter.

Cause:

There is a circular reference (such as "=A1" in cell A1) in the spreadsheet.

Action:

Change cell contents to remove the circular references.

Cause:

You are attempting to input data that exceeds the allowable input capacity (1,700 bytes).

You are attempting to input data that results in a chain of consecutive cell references (such as cell A2 referenced from cell A1, cell A3 referenced from cell A2…, etc.) This type of input always causes this error to be generated, even if memory capacity (1,700 bytes) is not exceeded.

Action:

Delete unneeded data and input data again.

Minimize input that results in a chain of consecutive cell references.

Cause:

You entered an expression that does not include an operator and tried to determine if it is true.

Action:

Enter an equation or inequality and then determine if it is true.

Cause:

The matrix or vector you are trying to use in a calculation was input without specifying its dimension.

Action:

Specify the dimension of the matrix or vector and then perform the calculation again.