Math Symbols
The following table lists the entities recognized as math symbols supported by HTML:
| Char | 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 | 
| ⊗ | ⊗ | ⊗ | cirled times | 
| ⊥ | ⊥ | ⊥ | perpendicular | 
| ⋅ | ⋅ | ⋅ | dot operator | 
