Euler thought up or improved way too many things for them all to be named after him, it would get too confusing.
From his wiki: “Euler’s work averages 800 pages a year from 1725 to 1783. He also wrote over 4500 letters and hundreds of manuscripts. It has been estimated that Leonhard Euler was the author of a quarter of the combined output in mathematics, physics, mechanics, astronomy, and navigation in the 18th century.” https://en.m.wikipedia.org/wiki/Leonhard_Euler
I don’t know what any of those are, but surely lagrangian mechanics was invented by Lagrange, right
Euler thought up or improved way too many things for them all to be named after him, it would get too confusing.
From his wiki: “Euler’s work averages 800 pages a year from 1725 to 1783. He also wrote over 4500 letters and hundreds of manuscripts. It has been estimated that Leonhard Euler was the author of a quarter of the combined output in mathematics, physics, mechanics, astronomy, and navigation in the 18th century.” https://en.m.wikipedia.org/wiki/Leonhard_Euler
And a relevant xkcd:

An old bit of wisdom: “Most scientific concepts are named after the second person to discover them”
I guess Euler-Langrangian mechanics was too much of a mouthful!
hmmm… I was going to go with continuum mechanics as that seems made up. Maybe Euler contributed something to Lagrange.
https://en.wikipedia.org/wiki/Continuum_mechanics
I guess F = ma is pure Newton + Galileo + Kepler + a bunch of people that weren’t Euler.