Hello again, Miss —! Your attitude is far from that of those, so many, wich don't even bother to consult the documentation, available resources, dissect capx, or even start a search via a search engine or forums. I believe that this third type of person there is the worst and that it would be necessary to create a pop-up tutorial just and only in an effort for them to learn to be a little more autonomous, which seems absolutely not to be your case, like I suppose nobody here!
Here one of my secret weapon, it allowed me to learn a lot and still today:
I just type on Google "scirra" followed by "all desired keywords I need".
I even sometimes combine with the term "capx" if I'm looking for sources.
Okay, it sometimes takes lot of work but with patience = guaranteed results.
In fact, I think we are all in the same boat, cause in game design, nothing seems ever won and obstacles still to be overcome, which can indeed and in the end, some days, be quite discouraging or even depressing, especially during first steps, not to mention our life to manage in this sick world of money, money, money. It is also, unfortunately, one of the way of cross that we have all freely chosen by launching ourselves into a so exciting and fascinating adventure, no matter the slogan.
Slogan that may need to be improved:
No Programming Required! (*)
* But it's better if you have a coder logic (**)
** And if you don't have it, you'll learn to have it (***)
*** Etc, etc, lol!
That said, and as underlined here, there is also a truly friendly and supportive community, often busy, sometimes silent as a wall, but ready to help when topics and difficulties are well posed. Why, and in the case of your mathematical example, not just create a function to achieve what you want to improve? At least, the case is filed!
To tell you the truth, I know perhaps how to code (although this does not mean anything any more today, given the increasing number of new languages ??and technologies every day - it's for me a sort of trendy recruiters fantasy), but if you knew how many days and nights I have spent working on ridiculous features that in my imagination and on paper were so simple and drawn in minutes. This actually does completely lose the head, especially with fatigue and sometimes a feeling of loneliness. In short, I always feel like starting from scratch, even though I have necessarily made progress, like all of us, and at the cost of many efforts.
Besides and frankly, whenever I use Construct2, I have the feeling to code, but with hands attached, this creates a form of frustration because if this model was unbridled, I will have an incredible saving of time and logic. In my wildest dreams, it might be necessary to implement a mode to be able to switch from a graphical view to a pure code view (in both directions), with a system of verification of the syntax and validation as precise as it is with the event sheets and as we know it today, and also create an accessible language for everyone, and for all levels. New slogan: Learn to code with C3! A sort of "gamification" aspect of the things. I'm sure they've already thought about it and it's possible cause Scirra's products are so thought and patterns very respectful of standards, which in the end always impressed me cause I didn't know initially how it was the case.
It's a little bit the problem exposed here, but reversed, and my new very special query for you and this year, 
Ashley!
Nice 
helena your idea of ??wiki, an official one, why not with a reliable system, well standardized and known like MediaWiki (the famous engine of Wikipedia) to which all certified users could participate. This would also make it easier to update contents and to translate into several languages. It may be a beginning of solution, there are certainly others... But what a supplementary colossal task!
After all I don't know, but I think Ashley, 
Tom and the others may burnout these days, because many of us, me the first, are a bit nervous and/or so demanding with our requests, even the most legitimate ones like your one, are so many, so I hope that it's not them that we are going to push in self-destruction mode, otherwise we would look very uncomfortable without our favorite tool and their parents!
Sorry, it was a bit long, I hope my frog eater prose is sufficiently digestible.
NB: I hate, like most French, eat poor frogs, still another myth. Croak and peace!