引用参考文献《空间直线度的评定侯宇计量技术1994.03》给出的算例，该例有12个样本点,以该文的算法计算出的直线度误差为0.0455mm；用本算法进行计算，直线度误差为0.044669mm（a=268.220215，b=-316.659790，c=-0.008934，x0=440.819763，y0=246.178024，z0=66.131554）。测量数据：
x=172.595;y=562.834;z=66.162
x=203.973;y=525.790;z=66.127
x=234.613;y=489.648;z=66.126
x=265.190;y=453.520;z=66.155
x=295.962;y=417.192;z=66.130
x=324.378;y=383.661;z=66.128
x=351.642;y=351.457;z=66.135
x=386.767;y=309.969;z=66.117
x=409.565;y=283.080;z=66.130
x=440.815;y=246.174;z=66.153
x=478.072;y=202.180;z=66.123
x=511.338;y=162.949;z=66.124