*Vertices 3
1 "数学年刊A" 0.0 0.0 0.0 x_fact 15.789474 y_fact 30.263158
2 "数学学报" 0.0 0.0 0.0 x_fact 0.000000 y_fact 32.236842
3 "数学杂志" 0.0 0.0 0.0 x_fact 26.315789 y_fact 37.500000
*Matrix 
0.000000 0.722285 0.798804 
0.722285 0.000000 0.849714 
0.798804 0.849714 0.000000