Returns epspivot.

REAL get_epspivot(lprec *lp);

Return Value

get_epspivot returns the value of epspivot.



Pointer to previously created lp model. See return value of make_lp, copy_lp, read_lp, read_lp_file, read_LP, read_mps, read_MPS


The get_epspivot function returns the value that is used as a tolerance for the pivot element to determine whether a value should be considered as 0.
Floating-point calculations always result in loss of precision and rounding errors. Therefore a very small value (example 1e-99) could be the result of such errors and should be considered as 0 for the algorithm. epspivot specifies the tolerance to determine if a pivot element should be considered as 0. If abs(value) is less than this epspivot value it is considered as 0 and at first instance rejected as pivot element. Only when no larger other pivot element can be found and the value is different from 0 it will be used as pivot element.
The default epspivot value is 1e-5


#include <stdio.h>
#include <stdlib.h>
#include "lpkit.h"

int main(void)
  lprec *lp;
  REAL epspivot;

  /* Create a new LP model */
  lp = make_lp(0, 0);
  if(lp == NULL) {
    fprintf(stderr, "Unable to create new LP model\n");

  epspivot = get_epspivot(lp); /* Returns 1e-5 */


lp_solve API reference

See Also make_lp, copy_lp, read_lp, read_lp_file, read_LP, read_mps, read_MPS, set_epspivot, set_infinite, get_infinite, set_epsilon, get_epsilon, set_epsd, get_epsd, set_epsel, get_epsel, get_epsperturb, set_epsperturb, set_mip_gap, get_mip_gap