I am a fan of Angular
and my hobby it to work on a collection of math and technical formulas, which can be used interactiv.
The page is written in a manner of template scaffolding, so adding more formulas will be simple and fast.

I like to work on such challenges for me, as
the multiple input values of formula parameter can the type in in any order as the user like and depended values will be related calculated. But this may cause circle loops, as e.g.

c^2 = a^2 + b^2 <==> a^2 =c^2 - b^2 - if the value c will changed and value b is "fixed".
Now with the new features os signals and effects and at least a store management (ngRx/Store).

I have study in the end of '80 physical technics and my profession is mechanical/physical engineering and development. I am not a professional front/back end engineer or programmer.