triqs::det_manip::det_manip::try_insert
#include <triqs/det_manip/det_manip.hpp>
Synopsis
det_manip::value_type try_insert (long i,long j,det_manip::x_type const & x,det_manip::y_type const & y)
Insert operation at column j0 and row i0.
The operation consists in adding :
- a column f(x_i, y_{j0})
- and a row f(x_{i0}, x_j)
The new column/row will be at col j0, row i0.
0 <= i0,j0 <= N, where N is the current size of the matrix. The current column j0 (resp. row i0) will become column j0+1 (resp. row i0+1). Inserting at N simply add the new col at the end. Returns the ratio of det Minv_new / det Minv.
This routine does NOT make any modification. It has to be completed with complete_operation().
Parameters
- i
- j