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16 hours ago · In computer science, a red–black tree is a specialised binary search tree data structure noted for fast storage and retrieval of ordered information, and a guarantee that operations will complete within a known time.
16 hours ago · The last of these statements is, essentially by definition, the same as the statement that () >, where () is the polygamma function of order 1. To prove the logarithmic convexity of the gamma function, it therefore suffices to observe that ψ ( 1 ) {\displaystyle \psi ^{(1)}} has a series representation which, for positive real x , consists of ...
16 hours ago · R is a programming language for statistical computing and data visualization.It has been adopted in the fields of data mining, bioinformatics, and data analysis.. The core R language is augmented by a large number of extension packages, containing reusable code, documentation, and sample data.
16 hours ago · An early human vector occurred when prehistoric humans introduced the Pacific rat (Rattus exulans) to Polynesia. Chinese mitten crab. Vectors include plants or seeds imported for horticulture. The pet trade moves animals across borders, where they can escape and become invasive. Organisms stow away on transport vehicles.
