Mathematical Operators | ||||
---|---|---|---|---|

∀ | ∀ | ∀ | ∀ | for all, U+2200 ISOtech |

∂ | ∂ | ∂ | ∂ | partial differential, U+2202 ISOtech |

∃ | ∃ | ∃ | ∃ | there exists, U+2203 ISOtech |

∅ | ∅ | ∅ | ∅ | empty set = null set = diameter, U+2205 ISOamso |

∇ | ∇ | ∇ | ∇ | nabla = backward difference, U+2207 ISOtech |

∈ | ∈ | ∈ | ∈ | element of, U+2208 ISOtech |

∉ | ∉ | ∉ | ∉ | not an element of, U+2209 ISOtech |

∋ | ∋ | ∋ | ∋ | contains as member, U+220B ISOtech (should there be a more memorable name than 'ni'?) |

∏ | ∏ | ∏ | ∏ | n-ary product = product sign, U+220F ISOamsb (prod is NOT the same character as U+03A0 'greek capital letter pi' though the same glyph might be used for both) |

∑ | ∑ | ∑ | ∑ | n-ary sumation, U+2211 ISOamsb (sum is NOT the same character as U+03A3 'greek capital letter sigma' though the same glyph might be used for both) |

− | − | − | − | minus sign, U+2212 ISOtech |

∗ | ∗ | ∗ | ∗ | asterisk operator, U+2217 ISOtech |

√ | √ | √ | √ | square root = radical sign, U+221A ISOtech |

∝ | ∝ | ∝ | ∝ | proportional to, U+221D ISOtech |

∞ | ∞ | ∞ | ∞ | infinity, U+221E ISOtech |

∠ | ∠ | ∠ | ∠ | angle, U+2220 ISOamso |

∧ | ∧ | ∧ | ∧ | logical and = wedge, U+2227 ISOtech |

∨ | ∨ | ∨ | ∨ | logical or = vee, U+2228 ISOtech |

∩ | ∩ | ∩ | ∩ | intersection = cap, U+2229 ISOtech |

∪ | ∪ | ∪ | ∪ | union = cup, U+222A ISOtech |

∫ | ∫ | ∫ | ∫ | integral, U+222B ISOtech |

∴ | ∴ | ∴ | ∴ | therefore, U+2234 ISOtech |

∼ | ∼ | ∼ | ∼ | tilde operator = varies with = similar to, U+223C ISOtech (tilde operator is NOT the same character as the tilde, U+007E, although the same glyph might be used to represent both) |

≅ | ≅ | ≅ | ≅ | approximately equal to, U+2245 ISOtech |

≈ | ≈ | ≈ | ≈ | almost equal to = asymptotic to, U+2248 ISOamsr |

≠ | ≠ | ≠ | ≠ | not equal to, U+2260 ISOtech |

≡ | ≡ | ≡ | ≡ | identical to, U+2261 ISOtech |

≤ | ≤ | ≤ | ≤ | less-than or equal to, U+2264 ISOtech |

≥ | ≥ | ≥ | ≥ | greater-than or equal to, U+2265 ISOtech |

⊂ | ⊂ | ⊂ | ⊂ | subset of, U+2282 ISOtech |

⊃ | ⊃ | ⊃ | ⊃ | superset of, U+2283 ISOtech |

⊄ | ⊄ | ⊄ | ⊄ | note that nsup, 'not a superset of, U+2283' is not covered by the Symbol font encoding and is not included. |

[] | [] | not a subset of, U+2284 ISOamsn | ||

⊆ | ⊆ | ⊆ | ⊆ | subset of or equal to, U+2286 ISOtech |

⊇ | ⊇ | ⊇ | ⊇ | superset of or equal to, U+2287 ISOtech |

⊕ | ⊕ | ⊕ | ⊕ | circled plus = direct sum, U+2295 ISOamsb |

⊗ | ⊗ | ⊗ | ⊗ | circled times = vector product, U+2297 ISOamsb |

⊥ | ⊥ | ⊥ | ⊥ | up tack = orthogonal to = perpendicular, U+22A5 ISOtech |

⋅ | ⋅ | ⋅ | ⋅ | dot operator, U+22C5 ISOamsb (dot operator is NOT the same character as U+00B7 middle dot) |