The basic concepts of complex numbers, calculus and linear algebra are prerequisites to quantum mechanics. Assuming the knowledge on dot product, complex numbers and calculus as covered in my previous articles, these articles explain quantum mechanics along with all the basics of linear algebra you need. Some high school students study a little bit of matrices, but I don’t think that they can appreciate the real value of matrices until they learn linear algebra, usually in the second semester of their college freshman year. “Matrices and Linear Algebra” is written so that readers can appreciate the real value of matrices. If you are already familiar with some key concepts in linear algebra, such as eigenvectors and eigenvalues, I advise you to read immediately “A short introduction to quantum mechanics I.” It will show you what quantum mechanics is, without complicated details. You need not read the other quantum mechanics articles if you feel they are too much, but if you want to know a little more than is explained in the first article, you may want to read “quantum mechanics II” and “quantum mechanics III,” though you can skip the former and still understand the latter. If you find "quantum mechanics II" confusing, don't worry and skip to the next articles. It should make more sense once you come back to it after reading "quantum mechanics VI."