Rumus Fisika dan Mamatika kebanyakan menggunakan huruf yunani / Latin Greek sebagai simbol dari besaran. Huruf ini sudah diadaptasi oleh HTML dan TeX.

Huruf Kapitan Yunani

Letter	TeX	Entity	Unicode
Α		Α	x391
Β		Β	x392
Γ	\Gamma	Γ	x393
Δ	\Delta	Δ	x394
Ε		Ε	x395
Ζ		Ζ	x396
Η		Η	x397
Θ	\Theta	Θ	x398
Ι		Ι	x399
Κ		Κ	x39A
Λ	\Lambda	Λ	x39B
Μ		Μ	x39C
Ν		Ν	x39D
Ξ	\Xi	Ξ	x39E
Ο		Ο	x39F
Π	\Pi	Π	x3A0
Ρ		Ρ	x3A1
Σ	\Sigma	Σ	x3A3
Τ		Τ	x3A4
Υ	\Upsilon	Υ	x3A5
Φ	\Phi	Φ	x3A6
Χ		Χ	x3A7
Ψ	\Psi	Ψ	x3A8
Ω	\Omega	Ω	x3A9

Note that the Unicode numbers above are consecutive with one exception: there is no Unicode character x3A2 between Ρ and Σ. The reason is given below.

Huruf Kecil Yunani

Letter	TeX	Entity	Unicode
α	\alpha	α	x3B1
β	\beta	β	x3B2
γ	\gamma	γ	x3B3
δ	\delta	δ	x3B4
ε	\epsilon	ε	x3B5
ζ	\zeta	ζ	x3B6
η	\eta	η	x3B7
θ	\theta	θ	x3B8
ι	\iota	ι	x3B9
κ	\kappa	κ	x3BA
λ	\lambda	λ	x3BB
μ	\mu	μ	x3BC
ν	\nu	ν	x3BD
ξ	\xi	ξ	x3BE
ο		ο	x3BF
π	\pi	π	x3C0
ρ	\rho	ρ	x3C1
ς	\varsigma	ς	x3C2
σ	\sigma	σ	x3C3
τ	\tau	τ	x3C4
υ	\upsilon	υ	x3C5
φ	\phi	φ	x3C6
χ	\chi	χ	x3C7
ψ	\psi	ψ	x3C8
ω	\omega	ω	x3C9