![]() The algorithm should not assume that all edge costs are the same. The algorithm uses a heuristic which associates an estimate of the lowest cost path from this node to the goal node, such that this estimate is never greater than the actual cost. The path may traverse any number of nodes connected by edges (aka arcs) with each edge having an associated cost. ![]() The A* search algorithm is an extension of Dijkstra's algorithm useful for finding the lowest cost path between two nodes (aka vertices) of a graph. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page. A* search algorithm is a draft programming task.
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