returns whether the matrix a has full rank . concode_field_sep DoubleMatrix2D QR concode_elem_sep long serialVersionUID concode_elem_sep int m concode_elem_sep int n concode_elem_sep DoubleMatrix1D Rdiag concode_field_sep DoubleMatrix2D getH concode_elem_sep DoubleMatrix2D solve concode_elem_sep String toString concode_elem_sep DoubleMatrix2D getQ concode_elem_sep DoubleMatrix2D getR
boolean function ( ) { for ( int loc0 = 0 ; loc0 < n ; loc0 ++ ) { if ( Rdiag . getQuick ( loc0 ) == 0 ) return false ; } return true ; }