Algodoo

There are a couple of problems:

1. When dividing a small number by a large number, the result on your calculator is always zero! It should show a value between zero and one.

2. There are no zeros! So, for example, I cannot enter numbers like 20503.

It's a good start, but it needs some work.

oh thank you for helping

but you can klick 10k 10k 500 2 1 than you have 20503

Sure, but that method of entering numbers is very confusing. No one would want to use it if they had to enter numbers like that!

The scene is interesting, but not practical as a calculator. Sorry...

You of course do not have to change it if you don't want to. I just made some suggestions to improve it.

I updated the calculator. Now you dont have the problem with the Input anymore, but it doesn´t work with very large numbers. And I don´t know how to deal with decimal Numbers. ^^

Next update: Now decimal numbers are working!

Jannik -- Your calculator works much better now. Good job!

It still has a few minor issues that I found. They are:

1. You have two AC buttons. One clears the numbers to the left of the operand, and the other clears the numbers to the right. In every calculator that I have used, they have only one AC button which clears everything.

2. Divide by zero gives a result of "+inf". Most real calculators will show either "NAN" or "Invalid" or "Error".

3. The result should not be displayed until the "=" is pressed.

4. There is no decimal point button for entering decimal values, and no +/- button for entering negative values.

5. When entering large values ( > 10 digits) the displayed value changes to some random weird value. (I see that you already know about this issue).

As I mentioned in an earlier comment, these issues that I found are totally up to you which ones (if any) that you want to correct. A four function calculator is not a simple programming task, even for a person with a lot of coding experience. You certainly have done a great job of it so far!

Wow, first of all I have to thank you for your thorough feedback! When I find the time I will look again to see what can be improved.