The second digit indicates successive iterations or generations in that segment. The following are the approximated solutions after five iterations. The singular vectors can be generated via a simple algorithm with "p" iterations. ""PageRank algorithm with explicit number of iterations. This algorithm performs formula 3 iterations, where is the longest path in . This edition has again a few minor changes compared to the previous iterations. More prototype Starships are under construction and are expected to go through several iterations. Some of these are based on previous "Star Trek" iterations rather than the film. Subsequent iterations of the iPhone have also garnered praise. They used batches of 128 images over 50,000 iterations. The shorter the iterations, the better the learning and communication within the team. System features are implemented in a series of short, time-boxed iterations. The project underwent numerous iterations with multiple directors attached. Subsequent iterations of the Nintendo DS, the DS Lite and DSi, also saw positive sales. Concept art is developed through several iterations.