exact The positive solution to the equation x2 = 3 might be reported as 1.73, which it is correct to two decimal places or to three significant figures, but the exact answer is
exact
数学辞典收录了4151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。