Just think: Lagrange and Euler!
https://glass-and-sand.com/2025/01/31/lagrangian-mathematics-in-astrophysics-pauls-journey-128/
Glass-and-Sand · Lagrangian Mathematics in Astrophysics: Paul’s Journey 128Paul, a Ph.D. student, is mentored by Magda, a mathematics professor specializing in Lagrangian mathematics. They discuss his thesis revisions while he contemplates a break and his interest in a se…