Method invalidateBasisMatrix

highs/simplex/HEkk.cpp:286–292

}

void HEkk::invalidateBasisMatrix() {
  // When the constraint matrix changes - dimensions or just (basic)
  // values, the simplex NLA becomes invalid, the simplex basis is
  // no longer valid, and
  this->status_.has_nla = false;
  invalidateBasis();
}

void HEkk::invalidateBasis() {
  // Invalidate the basis of the simplex LP, and all its other