# My Math Checker

### Try the automatic checker!

Check if the example is correctly calculated

Then replace it with your own calculation.

You have access to 5 free demo checks every hour.

# Derivatives

Check if the derivatives example to the left is calculated correctly. You can exchange it with your own calculation, and check that one as well.

# Use the checker always when practicing math

**THEORY** How to solve derivatives?

### Checking for Middle School, High School and University Level Math

Whether you are a middle school, high school or university level student, or an adult refreshing your memory,Â **4f CheckerÂ **helps you to checkÂ if your derivation is mathematically correct.

The checker formulates each step in the derivation as a mathematical theorem, and sends the theorem to an automatic theorem prover that runs in the cloud. The derivation is correct, if each step in the derivation is proved correct.

### Trust yourself

In math, there are many ways to get to a solution. Math operations can be made in different order, calculations in several or few steps. We all think in different ways, and it may be difficult to see it the way your teacher does and teaches you. This doesn't mean that your way is wrong. With the checker you can solve assignments your way, and check if it is mathematically correct.

### Subscription details

The monthly subscription My Math Checker includes digital notebooks where you can calculate all your assignments and check the correctness of your calculations. The checker goes through the solution step by step and points out the weak spots and potential problems in your mathematical arguments.

My Math Checker subscription gives you

- Access to eMath Studio
- Math tools for writing math easily on the computer
- Share your notes
- Embed videos and material

- Step-by-step checking of your calculations
- 200 checks / month subscribed

### Learn how 4f Checker can help you in your class

Students in your class can use 4f Checker to find errors in their own solution. It gives them immediate feedback while they are working on the problem. This can be minor calculation errors, formulas and theories used in the wrong way, or simply writing the wrong numbers. They get help with locating the problem, and will be able to correct some of the errors themselves, while everything is still fresh in their mind. They can send their solutions to you and you can then help them with the more substantial problems, the issues they have not understood. This will remove the obstacles to learning, and your students are ready to learn new things. You can also use 4f Checker to find errors in your students' solutions, or to check your own model solutions.

### Interested?

Contact us to get a two month trial in your class. Â We provide support and examples when you need it!

### Thinking of hiring a tutor for your high school student?

Success in High School opens many doors to future colleges and universities. It also affects your child's self esteem. We hear it a lot from adults, "I know I am not bad at math, but somehow I just missed a few things and never really got it..." In math, missing one point will make the rest very difficult to understand. Getting a little extra help exactly where it is needed will make all the difference for your child's future math studies. But tutors are expensive, so how about an e-tutor? The automatic checker is always available when your child feels unsure, it is also always objective, and always correct.

### Interested?

Try the 14 day free trial. Â We provide support and examples when you need it!

### Watch Video

We are excited to announce that we have added a CAS Calculator to 4f Checker. This means that you can now both check your solutions as before, but also calculate intermediate values, perform trigonometric and logarithmic operations and solve equations with the calculator. This feature will be automatically available for our existing 4f Checker users.