comparing LaTex rendered symbols to unicode symbols:

MathJax name = MathJax symbol = unicode symbol:

alpha $= \alpha = α$
beta $= \beta = β$
gamma $= \gamma = γ$
delta $= \delta = δ$
epsilon $= \epsilon = ε$
zeta $= \zeta = ζ$
eta $= \eta = η$
theta $= \theta = θ$
iota $= \iota = ι$
kappa $= \kappa = κ$
lambda $= \lambda = λ$
mu $= \mu = μ$
nu $= \nu = ν$
xi $= \xi = ξ$
omicron $= \omicron = ο$
pi $= \pi = π$
rho $= \rho = ρ$
sigma $= \sigma = σ$
tau $= \tau = τ$
upsilon $= \upsilon = υ$
phi $= \phi = φ$
chi $= \chi = χ$
psi $= \psi = ψ$
omega $= \omega = ω$

Alpha $= \Alpha = Α$
Beta $= \Beta = Β$
Gamma $= \Gamma = Γ$
Delta $= \Delta = Δ$
Epsilon $= \Epsilon = Ε$
Zeta $= \Zeta = Ζ$
Eta $= \Eta = Η$
Theta $= \Theta = Θ$
Iota $= \Iota = Ι$
Kappa $= \Kappa = Κ$
Lambda $= \Lambda = Λ$
Mu $= \Mu = Μ$
Nu $= \Nu = Ν$
Xi $= \Xi = Ξ$
Omicron $= \Omicron = Ο$
Pi $= \Pi = Π$
Rho $= \Rho = Ρ$
Sigma $= \Sigma = Σ$
Tau $= \Tau = Τ$
Upsilon $= \Upsilon = Υ$
Phi $= \Phi = Φ$
Chi $= \Chi = Χ$
Psi $= \Psi = Ψ$
Omega $= \Omega = Ω$