Math Symbols in HTML

CharacterEntity NumberEntity NameDescription
∀∀for all
√√square root
∝∝proportional to
∼∼similar to
≅≅congruent to
≈≈almost equal
≠≠not equal
≤≤less or equal
≥≥greater or equal
⊂⊂subset of
⊃⊃superset of
⊄⊄not subset of
⊆⊆subset or equal
⊇⊇superset or equal
⊕⊕circled plus
⊗⊗circled times
⋅⋅dot operator
  HTML CSS Book 

  1. URL Encoding Reference
  2. Color Names Supported by All Browsers
  3. ASCII Printable Characters
  4. Reserved Characters in HTML
  5. ISO 8859-1 Symbols
  6. ISO 8859-1 Characters
  7. Math Symbols in HTML
  8. Greek Letters in HTML
  9. Other Entities
  10. Common Language Codes
  11. ISO 639-1 Language Codes