It is, but some things need teachers, or at least slides and tutorials, instead of encyclopedia articles. If I had to learn linear algebra from http://en.wikipe

It is, but some things need teachers, or at least slides and tutorials, instead of encyclopedia articles. If I had to learn linear algebra from http://en.wikipedia.org/wiki/Linear_algebra http://en.wikipedia.org/wiki/Linear_algebra, I wouldn't have gotten nearly as far as I did with Math 54 in college.