*Vertices 3
1 "高等学校计算数学学报" 0.0 0.0 0.0 x_fact 19.736842 y_fact 42.105263
2 "数学研究与评论" 0.0 0.0 0.0 x_fact 5.263158 y_fact 19.736842
3 "计算数学" 0.0 0.0 0.0 x_fact 5.263158 y_fact 38.157895
*Matrix 
0.000000 0.426580 0.656388 
0.426580 0.000000 0.201699 
0.656388 0.201699 0.000000