quadratic的词源

英文词源

quadratic (adj.)

1650s, "square," with -ic + obsolete quadrate "a square; a group of four things" (late 14c.), from Latin quadratum, noun use of neuter adjective quadratus "square, squared," past participle of quadrare "to square, set in order, complete" (see quadrant). Quadratic equations (1660s) so called because they involve the square of x.

中文词源

quadratic：四倍的，平方的

quadr-,四，-atic,形容词后缀。用于数学名词平方。

该词的英语词源请访问找单词词源英文版：quadratic 词源，quadratic 含义。