<> ---- Today, I went to the Kyobo Bookstore. Sometimes I was perplexed with the fact that I know less then I expected. I've some tendency to overestimate me. I felt it again. I looked around the corner for English and Math. My conclusion is, I'm not ready to study Differential Equation, and I must study Calculus at first. And I looked over the vocabulary books, especially Word Smart. The words and sentences are too difficult to study for me. So I decided to study Voca 22000 which I already purchased six years ago and never finished. There's only one choice but to run hard. ---- Some Books * Differential Equations - a systems approach Author : Goldberg Potter Very useful exercises, but some difficult for me. * Differential Equations Author : Lomen & Lovelock Relatively easy and very kind in explanation... * Calculus - single variable Author : Hughes-Hallett * Linear Algebra Author : Gareth Williams there also exist the version of Korea (Scitech Media) ---- CategoryWebLogIndigoh