Vector 多项式展开组件

    运行脚本

    运行结果

    vec vec_out
    $8$1:3,2:4,4:7 $44$2:3.0 4:9.0 5:4.0 7:12.0 8:16.0 14:7.0 16:21.0 17:28.0 19:49.0
    $8$2:4,4:5 $44$5:4.0 8:16.0 14:5.0 17:20.0 19:25.0