equation solver does not give solution in certain cases, blocking problem on exams

[fbeleznay]

Describe the bug

PLEASE, can you please prioratise fixing this? The IB exam is coming in May and this issue can be something that can block students finding answers, where examiners expect students to rely on the use of an equation solver for questions similar to the screenshot.

The equation solver sometimes does not give a solution to an equation where the upper limit of the integral is the unknown.

Screenshots

To Reproduce

Steps to reproduce the behavior:

1. Go to the 'equations' app
2. Type in the equation
3. Scroll down to 'solve'
4. See error

The calculator shows that it is working, but it takes way too long, for some equations we could not wait until it gives the solution. We could of course stop the calculation on the physical calculator (the emulator simply froze).

Expected behavior

On previous operating systems students could choose the search interval before the calculator start searching for the solution. This is no longer available. Narrowing the interval can speed up finding the solution, but this cannot be done in the new operating system. Students can only change the search interval if the calculator returns something.
Probably in most cases the automatic search interval creation is helpful, but PLEASE, at least give students the option to change it. There are equations (like the one on the screenshot), where it takes a lot of time for the calculator to find the solution. The lack of option to manually set the search interval makes a question like this unsolvable on exams.

Environment

• Epsilon version 23.xxx.
• The platform(s) on which the problem happens: online simulator, actual device,
• Normally I advise students to update their operating system regularly, but until this is fixed, we cannot do this.