Hi I am reading a course in my University called " Transform theory and Analytical Functions " The only book Recomended is Arfken & Weber. The chapters that we should read is 6.1-6.5. 7.1-7.2 15.3-15.6 15.8-15.10 5.12 I have passed the courses wich you should have before reading this course, but when I try to read Arfken I get lost, for example integration, all of sudden it pops out e^2pi or a term (1/2pi) I dont understand. Iam starting to think its something you just put in for simplicity or something. For example this one : Or this one : I dont understand A SINGLE THING, Iam going Crazy here, feels like I have missed some major things. Dont understand why/what/how they do the things... I have a Exam in 13 days and I dont know anything. I consider myself decent in math, never had any huge problem with it. So my question is, is there a better book out there that explains those chapters in arfken? Perhaps a site on the internet wich shows how to solve problems, and if Iam right about that you put in some terms because you have to, where can I find a complete list with those. Thanks!