Math Symbols in HTML

CharacterEntity NumberEntity NameDescription
∀∀for all
∂∂part
∃∃exists
∅∅empty
∇∇nabla
∈∈isin
∉∉notin
∋∋ni
∏∏prod
∑∑sum
−−minus
∗∗lowast
√√square root
∝∝proportional to
∞∞infinity
∠∠angle
∧∧and
∨∨or
∩∩cap
∪∪cup
∫∫integral
∴∴therefore
∼∼similar to
≅≅congruent to
≈≈almost equal
≠≠not equal
≡≡equivalent
≤≤less or equal
≥≥greater or equal
⊂⊂subset of
⊃⊃superset of
⊄⊄not subset of
⊆⊆subset or equal
⊇⊇superset or equal
⊕⊕circled plus
⊗⊗circled times
⊥⊥perpendicular
⋅⋅dot operator
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Reference:
  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
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