title: OMS encoding
text: # OMS encoding
  
  OMS (aka TeX math symbol) is a 7-bit TeX encoding developed by Donald E. Knuth. It encodes mathematical symbols with variable sizes like for capital Pi notation, brackets, braces and radicals.
  
  ## Character set
  
  OMS :
  
  | | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 0x | − | ⋅ | × | ∗ | ÷ | ⋄ | ± | ∓ | ⊕ | ⊖ | ⊗ | ⊘ | ⊙ | ○ | ∘ | ∙ |
  | 1x | ≍ | ≡ | ⊆ | ⊇ | ≤ | ≥ | ≼ | ≽ | ∼ | ≈ | ⊂ | ⊃ | ≪ | ≫ | ≺ | ≻ |
  | 2x | ← | → | ↑ | ↓ | ↔ | ↗ | ↘ | ≃ | ⇐ | ⇒ | ⇑ | ⇓ | ⇔ | ↖ | ↙ | ∝ |
  | 3x | ′ | ∞ | ∈ | ∋ | △ | ▽ | ◌̸ | ◌̍ | ∀ | ∃ | ¬ | ∅ | ℜ | ℑ | ⊤ | ⊥ |
  | 4x | ℵ | 𝒜 | ℬ | 𝒞 | 𝒟 | ℰ | ℱ | 𝒢 | ℋ | ℐ | 𝒥 | 𝒦 | ℒ | ℳ | 𝒩 | 𝒪 |
  | 5x | 𝒫 | 𝒬 | ℛ | 𝒮 | 𝒯 | 𝒰 | 𝒱 | 𝒲 | 𝒳 | 𝒴 | 𝒵 | ∪ | ∩ | ⊎ | ∧ | ∨ |
  | 6x | ⊢ | ⊣ | ⌊ | ⌋ | ⌈ | ⌉ | { | } | ⟨ | ⟩ | ∣ | ∥ | ↕ | ⇕ | ∖ | ≀ |
  | 7x | √ | ∐ | ∇ | ∫ | ⊔ | ⊓ | ⊑ | ⊒ | § | † | ‡ | ¶ | ♣ | ♢ | ♡ | ♠ |
  