单词	or
释义	Or In logic "or" means at least one is true. They can both be true. But if none are true the result is "false". Example: When A is true and B is true then A or B is true When A is false and B is true then A or B is true When A is true and B is false then A or B is true When A is false and B is false then A or B is false Example: is grass green or red? Answer: yes. See: And
随便看	origin symmetry orthocenter orthogonal oscillating series ounce outcome outlier oval ovoid pair palindrome palindromic numbers parabola paraboloid parallel parallel lines parallel planes parallelepiped parallelogram parameter parametric equations parentheses parity parity bit partial derivative

数学辞典收录了1200条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。