qsx said:
Ok,
So would arithmetic, geometry, algebra, pre calculus, calculus be the best way to go about it? And don't try to prove everything.
The usual sequence in most schools I know of is arithmetic, algebra 1, geometry, algebra2, trig, pre calculus, calculus. Normally, that would take six years or more, so don't get discouraged if you can't do it in a year.
But you sound intelligent and motivated enough to compress it. Probably you could start geometry as soon as you have learned enough algebra to be able to solve basic equations, and you could skip trig, since most precalculus texts start it from scratch. They also contain a pretty extensive review of algebra, so you may be able to start precalculus earlier than you think.
Do spend as much time as it takes to thoroughly understand the subjects in your precalc book. Most calculus students who struggle, do so because their precalc foundation is shaky.
As for your books, I'm pretty sure there are lots of websites where you could learn basic math for free, as well as lots of free books you can download from Google Books or the like. Most of them are quite old (which is why the copyright has lapsed), but subjects like arithmetic, basic algebra, and geometry have not changed much for centuries. Old trigonometry books will have chapters on using tables of functions, which calculators and computers have made obsolete, but otherwise they are fine, too.
Your posts are so well written that it's hard to believe you don't know basic arithmetic. You might look for a book on Business Arithmetic or Business Math if you feel like you know your times tables, but want to learn more about applying arithmetic.
Be sure that the algebra books you read are for high school students. I don't know why, but there are MANY algebra books with titles like "Basic Algebra" or "Elementary Algebra" that are actually intended for upper division college students. If the book has chapters on rings or fields or groups, it might be that kind of book. You want a book that teaches you to solve simple equations.
Schaum's books are very popular, but they are more for people who are reviewing what they once learned, or who want more practice. IMO they don't explain things well enough for someone who is learning a subject for the first time, let alone someone like you, who has indicated that he wants to really understand where things come from.
Geometry might be the hardest subject for you to learn by yourself, because it is more about proofs than formulas, and if you get stuck, it's tough when there's nobody to ask. I would download several old books from Google Books so you can see different approaches; check the reviews in Amazon for suggestions on the best books for self study; and be sure to use this forum to ask for help when you get stuck. There is also an excellent interactive site on Euclid's Elements (the basic geometry textbook for 2000 years) here:
http://aleph0.clarku.edu/~djoyce/java/elements/elements.html
Note that most high school geometry classes would only get through the first 3 or 4 of the 13 "Books" of Euclid.
The only precalculus books that I have personal knowledge of are those by Stewart and Swokowski. I think both are very good, but maybe Stewart's is a little easier to read. You don't need a brand new one; look for a cheap used older edition on Amazon or Ebay. You should be able to find them for no more than ten dollars or so. If you can find good deals, get both of them -- sometimes if you don't understand one author's explanation, the other one makes it clear.
You might even try starting with a precalc book. As I said, your posts are so well-written that it's hard to believe you don't know basic arithmetic, and Stewart starts at a pretty basic level on all the other subjects, except geometry, which you should study anyway since it will satisfy your desire for learning about proofs.
You should probably expect to take at least two years before you are ready for calculus, by which time any recommendations made here will be dated. There are already several sites like MIT that offer full video courses for free, and many full online textbooks as well. There should be more and better every year.
Best of luck to you.