But this concept did not come from Japan, it came from Latin square. Euler who is Helvetic mathematician in 18 AD invented it.
但这一概念最初并非来自日本，而是源自拉丁方块，它是十八世纪的瑞士数学家欧拉发明的。
2
Based on the generalized moving least square method, a new Element-Free Galerkin (EFG) double-variable approximation is applied to dynamic characteristic calculation and analysis of Euler beam.