计算两坐标点间距离

X Y U ij 6.50 1.500.63 5.90 1.70 2.19 7.50 3.20 4.84 12.10 4.70 2.33 10.00 3.7028.38

0.6530.50 2.62

1.903

2.807.09

3.9026.0013.10 6.2013.1012.91 9.000.5010.96 5.0010.70 2.01 7.0010.50 3.35 10.0012.0018.21 -7.707.70 3.98 -3.90 6.509.51 -10.0013.8030.25 -7.0043.904

4.45