单词	atto-
释义	Atto- A prefix meaning one-quintillionth (1/1,000,000,000,000,000,000 or 10-18) The same as multiplying by 10-18 (which is 0.000 000 000 000 000 001) Prefix is a Example: 12 am = 12 attometers = 12 quintillionths of a meter (0.000000000000000012 m)
随便看	parity parity bit partial derivative partial product pascals triangle pattern payroll deduction pentagon pentagonal number pentagram pentahedron pentomino percent percentage points percentile rank perfect number perfect square perimeter period periodic function permutation perpendicular perpendicular lines perpendicular planes personal finance

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。