It might be a tiny bit hard to follow up on the solutions but if you have the basics to the task you need help on, it will be a breeze to unerstand! â¤. The only critique I would make is that the explanations aren't free.
I just wish they had an appendix explaining the meanings of certain symbols they use that I have never seen before. Not only is it great for getting an easy answer, but it teaches you different methods on how to do what you're stuck on with a simple picture.