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Posts Tagged ‘maths’

HTML Math Symbols
Added: 4th Aug, 2009 | Modified: 4th Aug, 2009
Categories: HTML

Character entity references in HTML 4.

Entity names are case sensitive.

http://www.w3.org/TR/html4/sgml/entities.html

Character Entity Number Entity Name Description
∀ ∀ ∀ for all
∂ ∂ ∂ partial differential
∃ ∃ &exists; there exists
∅ ∅ ∅ empty set
∇ ∇ ∇ nabla
∈ ∈ ∈ element of
∉ ∉ ∉ not an element of
∋ ∋ ∋ contains as member
∏ ∏ ∏ n-ary product
∑ ∑ ∑ n-ary summation
− − − minus sign
∗ ∗ ∗ asterisk operator
√ √ √ square root
∝ ∝ ∝ proportional to
∞ ∞ ∞ infinity
∠ ∠ ∠ angle
∧ ∧ ∧ logical and
∨ ∨ ∨ logical or
∩ ∩ ∩ intersection
∪ ∪ ∪ union
∫ ∫ ∫ integral
∴ ∴ ∴ therefore
∼ ∼ ∼ tilde operator
≅ ≅ ≅ congruent to
≈ ≈ ≈ almost equal to
≠ ≠ ≠ not equal to
≡ ≡ ≡ identical to
≤ ≤ ≤ less-than or equal to
≥ ≥ ≥ greater-than or equal to
⊂ ⊂ ⊂ subset of
⊃ ⊃ ⊃ superset of
⊄ ⊄ ⊄ not a subset of
⊆ ⊆ ⊆ subset of or equal to
⊇ ⊇ ⊇ superset of or equal to
⊕ ⊕ ⊕ circled plus
⊗ ⊗ ⊗ circled times
⊥ ⊥ ⊥ up tack
⋅ ⋅ ⋅ dot operator
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