2,7,0,0,0,0 "To estimate the relative lengths of several straight lines. ",1.148232E-02,-1 .0803163 -3 -4 2 -2 3 -2 .2298504 -2 4 2 8 2 .3318254 6 2 9 3 5.273261E-02 -3 2 -2 .1637214 6 2 2.861007E-02 -4 .1129437 "L1 " "L2 " "L3 " "L4 " "L5 " "L6 " "L7 " 07E-02 -4 .1129437 "