## How do you change the mode on a calculator?

To put most models of scientific calculators in degree mode, all you have to do is press “Mode” and then look at the numbers on the screen beside the menu items. Locate the number beside “Deg” or “Degrees” and press it to change the mode of your calculator.

## How do I change my Casio FX 991ex to radians?

These calculations can also be accomplished in radian mode. To change to radian mode, press qp(SET UP)2(Angle Unit)2(Radian). Operations with matrices and matrix related calculations are all located in the Matrix Menu. From the Main Menu, use the arrow keys to highlight the Matrix icon and press p or press 4.

## How do I restore my calculator app?

To get it back you can go to your settings > applications > application manager > disabled apps. You can enable it from there. selkhet likes this.

## What is fix mode on calculator?

When your calculator is set in this mode, the display indicator SCI is shown. Fixed decimal place mode (Fix) displays all decimal numbers to a given number of decimal places (unless scientific notation is needed to fit the result on the display).

## How do I know if my calculator is working properly?

So, to determine if a calculator is accurate, you simply need to know the true value of a calculation, then compare that to the answer of the same calculation that the calculator makes . Put simply, we all know that the true answer to 2+2 is equal to 4.

## Can a calculator ever be wrong?

Yes, pretty much every calculator is wrong since it operates on the finite precision representation of numbers so you cannot avoid rounding and a truncation. Yes, pretty much every calculator is wrong since it operates on the finite precision representation of numbers so you cannot avoid rounding and a truncation.

## Do calculators make mistakes?

These are called soft errors / soft faults and they absolutely do happen. For a single calculator the chances of actually seeing one are astronomically low, they only really crop up in large systems like supercomputers and large network deployments.

## How do you write a GUI test case?

To write a GUI test case, start with a description of a GUI event to be tested, such as a login attempt. Then, add the conditions and procedures for executing the test. Finally, identify the expected result of the test and criteria for determining whether the test succeeds or fails.

## How do you write negative cases?

Put simply, you write a negative test case by selecting the invalid input data or undesired user behavior that you acquire by performing positive test case steps. Price-Jones recommends starting with the positive test case criteria, which you define by test scenarios from a business requirement.

## Do we automate negative scenarios?

Negative tests are valid to automate as it is vital to make certain that application handles negative conditions during regression testing similar to positive conditions. However, such scenarios must be added if there is a risk that the system is incapable of error handling under some conditions.

## How much testing is enough?

There is no written rule. According to BCS/ISTQB Software Testing Foundation, you cannot physically test for every scenario. When deciding how much testing you should carry out, you may want to consider the level of risk involved, including technical and business risk and even budget or time constraints.

## How do you write positive and negative cases?

What’s the difference? Positive test cases ensure that users can perform appropriate actions when using valid data. Negative test cases are performed to try to “break” the software by performing invalid (or unacceptable) actions, or by using invalid data. Let’s take a straightforward example.

## Which one of the following is an example of negative test case?

Another example of this negative test case is entering data that exceeds the data type limits. Reasonable data – Some applications and web pages include fields that have a reasonable limit, for example, entering 200 or a negative number as the value for the “Your age:” field is not allowed.

## What is the exact meaning of manual testing?

Manual testing is the process of manually testing software for defects. It requires a tester to play the role of an end user whereby they use most of the application’s features to ensure correct behavior.