HTML Symbol Entities
HTML supports a variety of entity symbols which can be entered using either numbers or an entity name. The number or name is preceded by the ‘&’ sign and ends in a semi-colon (;). To enter a symbol switch to HTML view in the editor and enter the number or name (Ω for example).
Cut and past is also supported. Select the symbol from this page, ‘ctrl C’ to copy. Position the cursor in the editor and ‘ctrl V’ to paste.
Math Symbols
| Character | Entity Number | Entity Name | Description |
| ∀ | ∀ | ∀ | 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 |
Greek Letters
| Character | Entity Number | Entity Name | Description |
| Α | Α | Α | Alpha |
| Β | Β | Β | Beta |
| Γ | Γ | Γ | Gamma |
| Δ | Δ | Δ | Delta |
| Ε | Ε | Ε | Epsilon |
| Ζ | Ζ | Ζ | Zeta |
| Η | Η | Η | Eta |
| Θ | Θ | Θ | Theta |
| Ι | Ι | Ι | Iota |
| Κ | Κ | Κ | Kappa |
| Λ | Λ | Λ | Lambda |
| Μ | Μ | Μ | Mu |
| Ν | Ν | Ν | Nu |
| Ξ | Ξ | Ξ | Xi |
| Ο | Ο | Ο | Omicron |
| Π | Π | Π | Pi |
| Ρ | Ρ | Ρ | Rho |
| Σ | Σ | Σ | Sigma |
| Τ | Τ | Τ | Tau |
| Υ | Υ | Υ | Upsilon |
| Φ | Φ | Φ | Phi |
| Χ | Χ | Χ | Chi |
| Ψ | Ψ | Ψ | Psi |
| Ω | Ω | Ω | Omega |
| α | α | α | alpha |
| β | β | β | beta |
| γ | γ | γ | gamma |
| δ | δ | δ | delta |
| ε | ε | ε | epsilon |
| ζ | ζ | ζ | zeta |
| η | η | η | eta |
| θ | θ | θ | theta |
| ι | ι | ι | iota |
| κ | κ | κ | kappa |
| λ | λ | λ | lambda |
| μ | μ | μ | mu |
| ν | ν | ν | nu |
| ξ | ξ | ξ | xi |
| ο | ο | ο | omicron |
| π | π | π | pi |
| ρ | ρ | ρ | rho |
| ς | ς | ς | sigmaf |
| σ | σ | σ | sigma |
| τ | τ | τ | tau |
| υ | υ | υ | upsilon |
| φ | φ | φ | phi |
| χ | χ | χ | chi |
| ψ | ψ | ψ | psi |
| ω | ω | ω | omega |
| ϑ | ϑ | ϑ | theta symbol |
| ϒ | ϒ | ϒ | upsilon symbol |
| ϖ | ϖ | ϖ | pi symbol |
Other Entities
| Character | Entity Number | Entity Name | Description |
| Π| Π| Π| capital ligature OE |
| œ | œ | œ | small ligature oe |
| Š | Š | Š | capital S with caron |
| š | š | š | small S with caron |
| Ÿ | Ÿ | Ÿ | capital Y with diaeres |
| ƒ | ƒ | ƒ | f with hook |
| ˆ | ˆ | ˆ | modifier letter circumflex accent |
| ˜ | ˜ | ˜ | small tilde |
| |   |   | en space |
| |   |   | em space |
| |   |   | thin space |
| | ‌ | ‌ | zero width non-joiner |
| | ‍ | ‍ | zero width joiner |
| | ‎ | ‎ | left-to-right mark |
| | ‏ | ‏ | right-to-left mark |
| – | – | – | en dash |
| — | — | — | em dash |
| ‘ | ‘ | ‘ | left single quotation mark |
| ’ | ’ | ’ | right single quotation mark |
| ‚ | ‚ | ‚ | single low-9 quotation mark |
| “ | “ | “ | left double quotation mark |
| ” | ” | ” | right double quotation mark |
| „ | „ | „ | double low-9 quotation mark |
| † | † | † | dagger |
| ‡ | ‡ | ‡ | double dagger |
| • | • | • | bullet |
| … | … | … | horizontal ellipsis |
| ‰ | ‰ | ‰ | per mille |
| ′ | ′ | ′ | minutes |
| ″ | ″ | ″ | seconds |
| ‹ | ‹ | ‹ | single left angle quotation |
| › | › | › | single right angle quotation |
| ‾ | ‾ | ‾ | overline |
| € | € | € | euro |
| ™ | ™ | ™ | trademark |
| ← | ← | ← | left arrow |
| ↑ | ↑ | ↑ | up arrow |
| → | → | → | right arrow |
| ↓ | ↓ | ↓ | down arrow |
| ↔ | ↔ | ↔ | left right arrow |
| ↵ | ↵ | ↵ | carriage return arrow |
| ⌈ | ⌈ | ⌈ | left ceiling |
| ⌉ | ⌉ | ⌉ | right ceiling |
| ⌊ | ⌊ | ⌊ | left floor |
| ⌋ | ⌋ | ⌋ | right floor |
| ◊ | ◊ | ◊ | lozenge |
| ♠ | ♠ | ♠ | spade |
| ♣ | ♣ | ♣ | club |
| ♥ | ♥ | ♥ | heart |
| ♦ | ♦ | ♦ | diamond |
ASCI Codes
In addition to HTML symbol entities, it is sometimes useful to be able to quickly enter symbols using ASCI codes.
The enter a symbol using ASCI codes, press 'Alt' and type the code on the number keypad.
The following table lists some of the more useful codes for your posts:
| Arrows | Greek | Other | |
| ↨ - 23, up and down arrow ↑ - 24, up arrow ↓ - 25, down arrow → - 26, right arrow ← - 27, left arrow ↔ - 29, left and right arrow | α - 224, Alpha Γ - 226, Gamma π - 227, Pi Σ - 228, summation σ - 229, Sigma µ - 230, Mu τ - 231, Tau Φ - 232, Phi Θ -233, Theta Ω - 234, Omega δ - 235, delta ∞ - 236, infinity φ - 237, Phi ε - 238, Epsilon | ≡ - 240, equivalent symbol ± - 241, plus or minus ≥ - 242, greater or equal ≤ -243 less or equal ÷ - 246, division ≈ - 247 approximate ° - 248, degree symbol √ - 251, square root | Example:
To enter Ω, press the ‘Alt’ key and enter 234 on the numeric keypad. |