For Vectors and ,

(1) |

(2) |

(3) | |||

(4) |

where is the angle between and , given by the Dot Product

(5) |

Identities involving the cross product include

(6) |

(7) |

(8) |

(9) |

(10) |

**References**

Arfken, G. ``Vector or Cross Product.'' §1.4 in *Mathematical Methods for Physicists, 3rd ed.* Orlando, FL:
Academic Press, pp. 18-26, 1985.

© 1996-9

1999-05-25