In linear algebra, a matrix decomposition which writes a matrix as the product of a lower and upper triangular matrix, used in numerical analysis to solve systems of linear equations or find the inverse of a matrix
Why? said Lucy in amazement, haven't you all been wondering where I was? So you've been hiding, have you? Peter said. Poor old Lu, hiding and nobody noticed!.
logical unit Primary component of SNA, an LU is an NAU (network addressable unit) that enables end users to communicate with each other and gain access to SNA network resources
An IBM SNA network function defined in layers four, five and six (Transmission Control, Data Flow Control and Presentation Services) of the SNA architecture In the SNA network, corresponding LUs are able to exchange information Originally, particular types of LU has specific functions: LU1 for printers, LU2 for displays and so on As SNA has developed, new types of LU have been introduced that support a broader range of communications facilities LUs are normally associated with particular Physical Units (PUs), or network devices LUs provide the services required by Applications (APs) in the IBM SNA environment, sitting between the APs and the PUs A Dependent LU relies on the host for activation, physically and logically, while an Independent LU can initiate a session without host involvement
Luxembourg (in Internet addresses). The symbol for the element lutetium. Vassal state of ancient China that originated during the Western Zhou and came to prominence in the Warring States period of the Eastern Zhou dynasty. It is known as the birthplace of Confucius. The Chunqiu ("Spring and Autumn Annals"), one of the Confucian Classics, records the major events at the court of Lu between 722 and 481 BC. Lu chou Wu lu mu ch'i Lu Xiangshan Lu Jiuyuan Lu Hsiang shan Lu Xun Lu Hsün
Logical Unit A port through which end users of an SNA network communicate The LU handles and enforces the SNA protocols required for this communication