The algorithm is a set of instructions that need to follow to execute a solution or a task. Here, the PageRank algorithm is a function that helps to find out the probability of a user at which he searched for a single site. As it has several pages, the algorithm has to undergo many iterations during the calculation process. As we learn, the range is between 0 to 1. If the value is 0.3, it means they have a 30% probability. If the value is 0.8, it means the website has an 80% probability.