*this
is column-major, then there must not exists any nonzero coefficient of coordinates i
x
col such that i
>= row. Otherwise the matrix is invalid. use SimplicialLDLT or class SimplicialLLT
use normalize() or normalized()
use normalized()
use *this.dot Matrix multiplication: calculates the cross product.
use *this = a * b.transpose() (or *this = a * b.adjoint() for complexes)
use transposeInPlace() or transpose()
use transpose()
use .data()
use .data()