I posted a PDF here on how to do the curves, it’s the method that I use. Feel free to ask any questions you may have.
If you have an understanding of trigonometry, then you can definitely try them. I don’t, so I have a specific few that people have helped me with that I do use, which work very well to replace the arcs/intersect arcs, but helping on the forum, most people shy away from algebra & trig so I tend to not advise them, because I won’t be able to explain them nicely.
I do advise using the conditional statement and use it extensively myself.