# set_maxpivot Sets the maximum number of pivots between a re-inversion of the matrix. void set_maxpivot(lprec *lp, int max_num_inv); Return Value set_maxpivot has no return value. Parameters lp Pointer to previously created lp model. See return value of make_lp, copy_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI max_num_inv The maximum number of pivots between a re-inversion of the matrix. Remarks The set_maxpivot function sets the maximum number of pivots between a re-inversion of the matrix. For stability reasons, lp_solve re-inverts the matrix on regular times. max_num_inv determines how frequently this inversion is done. This can influence numerical stability. However, the more often this is done, the slower the solver becomes. The default is 250 for the LUSOL bfp and 42 for the other BFPs. Example
    #include <stdio.h>
    #include <stdlib.h>
    #include "lp_lib.h"

    int main(void)
    {
      lprec *lp;

      /* Create a new LP model */
      lp = make_lp(0, 0);
      if(lp == NULL) {
        fprintf(stderr, "Unable to create new LP model\n");
        return(1);
      }

      set_maxpivot(lp, 10);

      delete_lp(lp);
      return(0);
    }
lp_solve API reference See Also make_lp, copy_lp, read_lp, read_LP, read_mps, read_freemps, read_MPS, read_freeMPS, read_XLI, get_maxpivot