question: is the matrix full rank ? concode_field_sep double[][] QR concode_elem_sep long serialVersionUID concode_elem_sep int m concode_elem_sep int n concode_elem_sep double[] Rdiag concode_field_sep Matrix getH concode_elem_sep Matrix solve concode_elem_sep Matrix getQ concode_elem_sep Matrix getR concode_elem_sep String getRevision
target: boolean function ( ) { for ( int loc0 = 0 ; loc0 < n ; loc0 ++ ) { if ( Rdiag [ loc0 ] == 0 ) return false ; } return true ; }