Science

Exams are coming
Today is the day of learning vector analysis and specifically differential operators in orthogonal curvilinear coordinates
At the pic you can how to calculate gradient
H's are Lame parameters and q's are new coordinate system 
I wouldn't say it's hard but to be honest I am not a big fan of this🥲

Not builder, not highbank, just posting things

ибонь как я рад что кинул универ после второго курса

эта х::ня даже в страшном сне мне не пригодилась