**NAME** |
**HTML ENTITY** |
**HTML DECIMAL** |
**HTML HEXADECIMAL** |
**RENDERING IN YOUR WEB BROWSER** |

almost equal to = asymptotic to |
≈ |
≈ |
≈ |
≈ |
≈ |
≈ |

angle |
∠ |
∠ |
∠ |
∠ |
∠ |
∠ |

asterisk operator |
∗ |
∗ |
∗ |
∗ |
∗ |
∗ |

blackletter uppercase I = imaginary part |
ℑ |
ℑ |
ℑ |
ℑ |
ℑ |
ℑ |

blackletter uppercase R = real part symbol |
ℜ |
ℜ |
ℜ |
ℜ |
ℜ |
ℜ |

circled plus = direct sum |
⊕ |
⊕ |
⊕ |
⊕ |
⊕ |
⊕ |

circled times = vector product |
⊗ |
⊗ |
⊗ |
⊗ |
⊗ |
⊗ |

contains as member |
∋ |
∋ |
∋ |
∋ |
∋ |
∋ |

dot operator |
⋅ |
⋅ |
⋅ |
⋅ |
⋅ |
⋅ |

double prime = seconds = inches |
″ |
″ |
″ |
″ |
″ |
″ |