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Video: Keys pressed for calculating eight times six on a HP-32SII (employing RPN) from 1991. Reverse Polish notation (RPN), also known as reverse Łukasiewicz notation, Polish postfix notation or simply postfix notation, is a mathematical notation in which operators follow their operands, in contrast to prefix or Polish notation (PN), in which operators precede their operands.
According to the first meaning of permutation, each of the six rows is a different permutation of three distinct balls. In mathematics, a permutation of a set can mean one of two different things:
Net promoter score. Net promoter score (NPS) is a market research metric that is based on a single survey question asking respondents to rate the likelihood that they would recommend a company, product, or a service to a friend or colleague. [1] The NPS is a proprietary instrument developed by Fred Reichheld, who owns the registered NPS ...
The organization's legal name is National Public Radio and its trademarked brand is NPR; it is known by both names. [11] In June 2010, the organization announced that it was "making a conscious effort to consistently refer to ourselves as NPR on-air and online" because NPR is the common name for the organization and its radio hosts have used the tag line "This ... is NPR" for many years. [11]
The Colorado Public Radio studios in Centennial, Colorado. Colorado Public Radio (CPR) is a public radio state network based in Denver, Colorado that broadcasts three services: news, classical music and Indie 102.3, which plays adult album alternative music. CPR airs its programming on 15 full-power stations, augmented by 17 translators.
The Nuclear Posture Review (NPR) is a process “to determine what the role of nuclear weapons in U.S. security strategy should be.” [1] NPRs are the primary document for determining U.S. strategy for nuclear weapons and it outlines an overview of U.S. nuclear capabilities, changes to current stockpiles and capabilities, plans for deterrence, and plans for arms control policy with other nations.
Podcasts. Marketplace is an American radio program that focuses on business, the economy, and events that influence them. The program was first broadcast on January 2, 1989. Hosted by Kai Ryssdal since 2005, the show is produced and distributed by American Public Media. Marketplace is produced in Los Angeles with bureaus in New York, Washington ...
The Public Radio Satellite System (PRSS) is the interconnected satellite-distributed network managed by NPR (National Public Radio), and used by NPR, Public Radio Exchange (PRX), and American Public Media (APM), as well as independent public radio program producers, to distribute programming via satellite to public radio stations across the United States.