24个希腊字母表

大写	小写	英文名	IPA（英式）	中文谐音	常见场景例句	LaTeX
Α	α	Alpha	/ˈælfə/	阿尔法	“Set the learning rate α = 0.01.”	\alpha
Β	β	Beta	/ˈbiːtə/	贝塔	“The regression coefficient β₁ is significant.”	\beta
Γ	γ	Gamma	/ˈɡæmə/	伽马	“Apply Gamma distribution as a prior.”	\gamma
Δ	δ	Delta	/ˈdɛltə/	德尔塔	“The difference Δ equals the gradient step.”	\delta
Ε	ε	Epsilon	/ˈɛpsɪlɒn/	艾普西隆	“Add a small error term ε to avoid division by zero.”	\epsilon
Ζ	ζ	Zeta	/ˈziːtə/	泽塔	“The Riemann zeta function appears in regularization.”	\zeta
Η	η	Eta	/ˈiːtə/	伊塔	“Set the learning rate η = 0.001.”	\eta
Θ	θ	Theta	/ˈθiːtə/	西塔	“Optimize the parameter θ via gradient descent.”	\theta
Ι	ι	Iota	/aɪˈoʊtə/	艾欧塔	“The change is tiny, iota-scale.”	\iota
Κ	κ	Kappa	/ˈkæpə/	卡帕	“Use the condition number κ to check matrix stability.”	\kappa
Λ	λ	Lambda	/ˈlæmdə/	兰姆达	“Apply L2 regularization with weight λ = 0.1.”	\lambda
Μ	μ	Mu	/mjuː/	缪	“The mean μ of the Gaussian distribution is zero.”	\mu
Ν	ν	Nu	/njuː/	纽	“Set degrees of freedom ν = 5.”	\nu
Ξ	ξ	Xi	/zaɪ/ 或 /ksaɪ/	赛（或克赛）	“The random noise ξ follows a normal distribution.”	\xi
Ο	ο	Omicron	/ˈɒmɪkrɒn/	奥密克戎	“Omicron is rarely used, just a placeholder.”	\omicron
Π	π	Pi	/paɪ/	派	“The constant π = 3.14159 appears in prior.”	\pi
Ρ	ρ	Rho	/roʊ/	柔	“Compute the correlation coefficient ρ.”	\rho
Σ	σ	Sigma	/ˈsɪɡmə/	西格马	“Sum over all samples: Σ (yᵢ - ŷᵢ)².”	\sigma
Τ	τ	Tau	/tɔː/ 或 /taʊ/	陶	“Use Kendall’s rank correlation τ.”	\tau
Υ	υ	Upsilon	/ʌpˈsaɪlən/	阿普塞隆	“Upsilon is uncommon, used in particle physics.”	\upsilon
Φ	φ	Phi	/faɪ/	费	“The activation function is φ(x) = sigmoid.”	\phi
Χ	χ	Chi	/kaɪ/	凯	“Calculate the Chi-squared statistic χ².”	\chi
Ψ	ψ	Psi	/saɪ/	赛	“The wave function ψ in quantum ML.”	\psi
Ω	ω	Omega	/oʊˈmeɡə/	奥米伽	“The parameter space Ω is high-dimensional.”	\omega