*Vertices 3
1 "中国科学A" 0.0 0.0 0.0 x_fact 0.000000 y_fact 18.978102
2 "应用数学学报" 0.0 0.0 0.0 x_fact 15.328467 y_fact 25.547445
3 "计算数学" 0.0 0.0 0.0 x_fact 15.328467 y_fact 55.474453
*Matrix 
0.000000 0.489702 0.000000 
0.489702 0.000000 0.749393 
0.000000 0.749393 0.000000