When a computation goes wrong for any reason, the calculator will provide an error message. Pressing the forward arrow sign to reveal the error’s location or pressing the backward error sign to remove the message and computation are the two options for quitting an error message display.Â

## What Does an Error Mean?

The percentage difference between an expected or predicted value and the actual outcome is known as an error in mathematics. To evaluate how accurate forecasting models are for a given calculation, many people use the percentage error. For instance, a company that forecasts the results of athletic events can utilize error to assess how accurate their forecasting techniques are and whether they require further research or data to produce more accurate forecasts.Â

Below are formulas you can use to calculate the error:

**Error = [(Expected value âˆ’ Actual value) / Actual value]**

**Percentage error = [(Expected value âˆ’ Actual value) / Actual value] x 100**

Where:

- An expected value is a prediction about the outcome of an event or calculation.
- An actual value is the true value of the event or calculation.

## Identifying the Error’s Location

If an error notice appears, click to go back to the computation screen. When an error occurs, the cursor will be placed there and ready for input. Make the required adjustments to the computation and run it once more. **Dot Product Calculator** can also show these arrows and you can eliminate them by following these steps.

## Eliminating the Error Notation

Press to go back to the computation screen when an error notice appears on the screen. Keep in mind that doing this also removes the mistake from the calculation.

### Math ERROR MessagesÂ

#### Error Cause

The computation you are doing yields an intermediate or final result that is more than the permitted calculation range. Your input (especially when utilizing functions) goes beyond the permitted input range. You are doing an unlawful mathematical operation (division by zero) in this computation.

#### Take Action

Verify the input numbers, decrease the digit count, and attempt once more. Make that the value of the independent memory or variable is within the function’s permitted range before passing it in as an argument.

### Cause of Stack Error

The command stack or the numeric stack’s capacity has been surpassed as a result of the calculation you are doing. The matrix or vector stack’s capacity has been surpassed by the calculation you are doing.

#### Take Action

To keep the calculation phrase inside the stack’s capacity, simplify it. Consider dividing the computation into two or more sections.

### Dimension Error (exclusively for matrix and vector modes)

These errors are mostly seen in the **Average of Percentages Calculator**.

#### Reason

You are attempting to use a matrix or vector that was entered without specifying its dimension in a calculation.

You are attempting to compute something using matrices or vectors whose dimensions prevent you from doing that kind of computation.

#### Take Action

Once the matrix or vector’s dimensions have been specified, repeat the procedure. Verify whether the matrices’ or vectors’ stated dimensions fit the computation by looking at them.

### Variable ERROR (only for SOLVE feature)

#### Reason

There is no X variable in the equation you entered, and you did not provide a solution variable. The equation you entered does not contain the solution variable that you selected.

#### Take Action

If you omit the solution variable, the equation you enter needs to have an X variable. Choose a variable from the equation you supplied to serve as the solution variable.

### The error cannot be solved (SOLVE feature only)

#### Reason

The calculator was unable to come up with an answer.

#### Take Action

Verify that the equation you entered is correct. Try again after entering a value for the solution variable that is nearly identical to the anticipated answer.

### Inadequate MEM Error Origin

An effort to produce a numerical table in TABLE Mode that has more rows than is permitted under certain circumstances. If “f(x)” is chosen for the setup menu table setting, the maximum number of rows is thirty; if “f(x),g(x)” is selected, the maximum number of rows is twenty.

#### Take Action

Try again after adjusting the Start, End, and Step values to reduce the table computation range.

### Cause of Time Out Error

If the terminating condition is not met, the present differential or integration calculation comes to a stop.

#### Take Action

Try raising the value of the tool. Keep in mind that doing so reduces the accuracy of the solution.

## Conclusion

Forecasting techniques are widely used by businesses and individuals to predict future events. Testing those techniques’ errors is a crucial step in this procedure. Gaining a better understanding of error and how to compute it will help you make more accurate predictions and enhance your forecasting techniques. This type of error is the result of a mistake or oversight on the part of the researcher. This type of inaccuracy might result from, for example, inaccurate measurements or careless methods. Such statistical errors might also be caused by unconscious bias.