# Mathematical notation

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Mathematics on these webpages is written in a basic subset of LaTeX (a mathematical typesetting dialect) and is restricted to what can be easily displayed in HTML. (Display options using PDF or MathML are planned for the near future.) The aim is to make editing mathematics easy for people who are somewhat familiar with LaTeX.

The specific restrictions on the Latex commands are as follows:

• LaTeX is only recognized between single dollar signs. To display mathematics, leave an empty line before and after.
• Greek letters are available: \alpha α, \beta β, \gamma γ, \delta δ, \epsilon ε, \zeta ζ, \eta η, \theta θ, \kappa κ, \lambda λ, \mu μ, \nu ν, \xi ξ, \pi π, \rho ρ, \sigma σ, \tau τ, \phi φ, \chi χ, \psi ψ, \omega ω, \Gamma Γ, \Delta Δ, \Theta Θ, \Lambda Λ, \Xi Ξ, \Pi Π, \Sigma Σ, \Phi Φ, \Psi Ψ, \Omega Ω
• Other symbols: \vee , \wedge , \neg ¬, \implies   ⇒  , \iff   ⇔  , \forall , \exists , \cup , \cap , \in  ∈ , \notin  ∉ , \emptyset Ø, \subseteq  ⊆ , \subset  ⊂ , \supseteq  ⊇ , \supset  ⊃ , \cdot ·, \circ o, \times ×, \partial , \int , \backslash \, \to  → , \{ {, \} }, \langle (, \rangle ), =  = , \ne \neq  ≠ , \le \leq  ≤ , \ge \geq  ≥ , \equiv  ≡ , \approx  ≈ , \  , \ell , \aleph
• \mathbf,\mathbb,\mathcal (the fonts look different, but this will be addressed).
• \mbox, \mathrm to include text in mathematical expressions (no dollar signs allowed in argument).
• Single level superscripts and subscripts: x^2 x2, a_i ai, e^{\pi} eπ
• LaTeX commands that are not mentioned above are displayed as words.
• Macros (\def or \newcommand) are not implemented

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