books.google.com - Linear algebra permeates mathematics, perhaps more so than any other single subject. It plays an essential role in pure and applied mathematics, statistics, computer science, and many aspects of physics and engineering. This book conveys in a user-friendly way the basic and advanced techniques of linear...http://books.google.com/books/about/Linear_Algebra_in_Action.html?id=q46nRETkXTsC&q=inner+product+space&utm_source=gb-gplus-shareLinear Algebra in Action