单词	substitution
释义	Substitution Putting values where the letters are. Example: What is x + x/2 when x=5? Answer: Put "5" where "x" is: 5 + 5/2 = 5 + 2.5 = 7.5
随便看	ordinal number ordinary differential equation ordinate origin 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

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。