Oh man, Gradsteyn and Rhyzik! My masters was about modifying potential flow singularities (Singularities to cancel other singularities... eh hem, I was young)

Oh man, Gradsteyn and Rhyzik! My masters was about modifying potential flow singularities (Singularities to cancel other singularities... eh hem, I was young) to model vortices shed from blunt surfaces - part of fast/cheap performance prediction for wave energy converters. Didn’t work amazingly well physically, but I will never forget the fun I had that summer figuring out some how to work with those singular integral equations. Working on a set of terms until at long last a form emerged that matched with R&G was such a breakthrough moment!