Dai Xu (清) 戴煦 <br/><br/>
Jia shu ce yuan 假數測圓 
 Qiu-biao jie-shu 
Dai Xu (清) 戴煦 [撰] 
 - 據清咸豐伍崇曜校刊本影印 
 - 粵雅堂叢書  118 .
<br/><br/>Bestandteil des ?D?Y??│N 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science -- Mathematics -- Qing