My quantum physics professor this semester showed us a useful book he had with tables of integrals, etc. in it called "Tables of Integrals and Other Mathematical Data" (4th edition) by Herbert Bristol Dwight. I have been considering buying this book from Amazon but was waiting because today was the local public library's book sale and they often have old science and math books there, and I was able to pick up "Handbook of Mathematical Tables and Formulas" (5th edition) by Richard Stevens Burlington. Is this book essentially equivalent to Dwight's or is there important stuff in Dwight's book that would make it worth still buying at some point? Are there any opinions on which book is better? Thank you!