[drilldrive]

There should be acknowledgement that so much was initiated by his work. Perhaps via xxx-Euler's formula or something.

[waterhouse]

    ~> p | egrep 'Euler[-–][^ ]+' | sort
    Euler–Bernoulli beam equation, a fourth-order ODE concerning the elasticity of structural beams.
    Euler–Cauchy equation, a linear equidimensional second-order ODEs with variable coefficients. Its second-order version can emerge from Laplace equation in polar coordinates.
    Euler–Fermat theorem, that aφ(m) ≡ 1 (mod m) whenever a is coprime to m, and φ is Euler's totient function
    Euler–Fokker genus
    Euler–Lagrange equation, a second-order ODE emerging from minimization problems in calculus of variations.
    Euler–Lotka equation, a characteristic equation employed in mathematical demography
    Euler–Maclaurin formula (Euler's summation formula) relating integrals to sums
    Euler–Mascheroni constant, γ ≈ 0.5772, the limiting difference between the harmonic series and the natural logarithm.
    Euler–Poisson–Darboux equation, a second-order PDE playing important role in solving the wave equation.
    Euler–Rodrigues formula describing the rotation of a vector in three dimensions
    Euler–Tricomi equation – a second-order PDE emerging from Euler conservation equations.