#include "RTOp.h"
#include "RTOp_obj_null_vtbl.h"

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struct RTOp_RTOp_vtbl_t RTOp_TOp_force_in_bounds_buffer_vtbl

Detailed Description

Force the elements in a vector to be within upper and lower bounds.

Force vec[0](i) <= targ_vec[0](i) <= vec[1](i), for i = 1...n.

This operator is only admits dense vectors. This transformation operation performs the following (apply_op(...)):

            / xl(i) : if x(i) < xl(i)
 x(i) =     | x(i)  : if xl(i) <= x(i) <= xu(i)
            \ xu(i) : if x(i) > xu(i)
 where:
    x  = targ_vec[0]
  xl = vec[0]
  xu = vec[1]

Definition in file RTOp_TOp_force_in_bounds.h.

Variable Documentation

struct RTOp_RTOp_vtbl_t RTOp_TOp_force_in_bounds_buffer_vtbl

This operator is used by the interior point algorithm to push initial variables sufficiently inside the bounds since the algorithm assumes that they are ALWAYS within bounds.


element-wise transformation:
    xl_sb = min(v0 + rel_push*(v1-v0), v0 + abs_push);
    xu_sb = max(v1 - rel_push*(v1-v0), v1 - abs_push);
    if (xl_sb >= xu_sb)
        { z0 = v0 + (v1-v0)/2.0; }
    else if (z0 < xl_sb)
        { z0 = xl_sb; }
    else if (z0 > xu_sb)
        { z0 = xu_sb; }
    // Otherwise, leave it

This operator class implementation was created automatically by 'new_rtop.pl'.

xl_sb = min(xl+relative_bound_push*(xu-xl), xl + absolute_bound_push) xu_sb = max(xu-relative_bound_push*(xu-xl), xu - absolute_bound_push) if (xl_sb > xu_sb) then x = (xl + (xu-xl)/2 else if (x < xl_sb) then x = xl_sb else if (x > xu_sb) then x = xu_sb

Definition at line 235 of file RTOp_TOp_force_in_bounds.c.