juanjuan

Results 2 issues of juanjuan

maybe we should use this command line rather than the original one git clone https://github.com/Mitchell-Lee-93/kitti-A-LOAM.git thanks for your contribution!

在代码注释中,对于J的定义是一个vector3d,所以Hession应该等于J*J^T,但是在注释32行注释中写反了。此外在正文128页中对f(x+▲x)展开中,说J^T为f(x)关于x的导数,为n×1的列向量,但应该是J为列向量,转置后为1×n的row向量。