Greetings from Portland, Oregon, Sergio!
I gave your invention a whirl with a random 2nd degree equation:
Always glad to see sympy getting a workout. Flask front end.
Great skills combo! Cross disciplinary.
Do you share source code somewhere i.e. is this open source?
I use:
to share about "API" and other concepts with Python students,
and have links to the code on Github. A conventional setup.
I pay very little.
Kirby