equation n. 1.平衡,均衡;平均,相等。 2.【數學】方程式,等式。 3.【天文學】(時)差;均分,等分。 4.【化學】反應式。 algebraic [linear, simple, quadratic, cubic, simultaneous] equation 代數(一次,一元一次,二次,三次,聯立)方程式。 differential equation 微分方程。 an identical equation 恒等式。 equation of light 【天文學】光行時差。 equation of payments 平均分期付款。 equation of state 【物理學】物態方程式。 equation of time 【天文學】時差。 personal equation 【天文學】觀測上的個人誤差。
The discussion of the fourth kind of quadratic equation , the use of " rule of three " , the calculation of number r and some terms algebra can be found in indian classics introduced to arab and some of these mathematical knowledge maybe comes from china ( such as " rule of three " ) 花拉子米對第四種二次方程的討論,使用的“三率法” ,對圓周率的計算以及某些術語可以在早期傳入阿拉伯的印度典籍中找到出處,而在這些數學知識中有一些可能是遠源于中國的(比如“三率法” ) 。