| 单词 | perfect square |
| 释义 | perfect square in American English a quantity which is the exact square of another quantity; e.g., 25 is a perfect square of 5, x2+2xy+y2 of (x+y) perfect square in American Englishnoun Math 1. a rational number that is equal to the square of another rational number 2. a polynomial that is the square of another polynomial Word origin [1935–40]This word is first recorded in the period 1935–40. Other words that entered Englishat around the same time include: Rhodesian ridgeback, bingo, complementation, hard core, roometteExamples of 'perfect square' in a sentence |
| 随便看 |
英语词典包含298861条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。