I hear a similar chant at WPI every basketball season. But i dont understand it.
“E to the X”, “E to the Y”, and Dx/Dy are caculus expressions. Unfortunately my grad school calc class was 22 years ago so I can’t explain it better than that.
“Tangent, secant, cosign, sign” are 4 of the 6 basic calculations in trigonometry.
“Three point one four one five nine” is 3.14159 - Pi.
RPI is an outstanding engineering school in Upstate New York that used to have a great hockey program. I think they got hit by a Title IX suit some years ago.