Recent content by e-pi

Guys I read Shaum's outline of differential equations. I understand that for different type of differential equation you need different method to solve the equation. My problem is i am curious how these methods to solve differential equations came about. I want to get a good understanding of...

Guys I read a little on how Heisenberg's quantum mechanics equations (solving with eigenvectors) were derived in the book "What is quantum mechanics: A physical adventure". There is no exercise in the book. After reading, I still don't understand eigenvalue. What is it for? How to use it...

Please recommend a complex analysis book for "The road to reality" Guys I am a electrical engineer who studied calculus III about 15 years ago. That time I memorized formulas to pass exams and never have much of a understanding of complex analysis. Never touched high math again after...