21. This iterative procedure keeps track of the search boundaries via two variables. 22. Iterative instructions are performed repetitively and may depend on some data value.23. Iterative methods are often the only choice for nonlinear equations.24. General iterative methods can be developed using a matrix splitting. 25. The level of design detail is not dictated by the iterative approach. 26. The use of preconditioners can significantly accelerate convergence of such iterative methods. 27. Given a random cube C, it is solved as iterative deepening. 28. It is an iterative process that helps to produce more realistic models. 29. Extracted features are accurately reconstructed using an iterative conjugate gradient matrix method. 30. Again the iterative approach is used in this development method.