乘方
to square a number; to calculate the square
成方儿
set prescription (i.e. medicine specifically prescribed for a definite condition)
不以规矩,不能成方圆
without rules, nothing can be done (idiom, from Mencius); one must follow some rules
没有规矩,不成方圆
without rules, nothing can be done (idiom); one must follow some rules
没有规矩,何以成方圆
without rules, how can anything be done (idiom); one must follow some rules