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Symbolab is an answer engine [1] that provides step-by-step solutions to mathematical problems in a range of subjects. [2] It was originally developed by Israeli start-up company EqsQuest Ltd., under whom it was released for public use in 2011. In 2020, the company was acquired by American educational technology website Course Hero. [3] [4]
In mathematics, the ratio test is a test (or "criterion") for the convergence of a series =, where each term is a real or complex number and a n is nonzero when n is large. The test was first published by Jean le Rond d'Alembert and is sometimes known as d'Alembert's ratio test or as the Cauchy ratio test.
A joggle bend in sheet metal (at top of image) and a hand joggling tool Joggling , [ 5 ] also known as joggle bending , is an offset bending process in which two opposite bends with equal angles are formed in a single action creating a small s-shape bend profile and an offset between the unbent face and the result flange that is typically less ...
A biography of a machine tool builder that also contains some general history of the industry. Rolt, L. T. C. (1965), A Short History of Machine Tools, Cambridge, Massachusetts, USA: MIT Press, OCLC 250074. Co-edition published as Rolt, L. T. C. (1965), Tools for the Job: a Short History of Machine Tools, London: B. T. Batsford, LCCN 65080822.
The comptometer-type calculator was the first machine to receive an all-electronic calculator engine in 1961 (the ANITA mark VII released by Sumlock comptometer of the UK). In 1890 W. T. Odhner got the rights to manufacture his calculator back from Königsberger & C , which had held them since it was first patented in 1878, but had not really ...
(Reuters) -Businessman Elon Musk, an ally of President-elect Donald Trump, endorsed Republican Senator Rick Scott for U.S. Senate majority leader on Sunday as Trump pushed candidates for the ...
A Miami Herald investigation into the boat crash that killed a 17-year-old Lourdes student reveals a deeply flawed probe as FWC investigators and prosecutors built a case against George Pino.
Machine tool builders no longer use the "plain"-versus-"universal" labeling. Size Micro, mini, benchtop, standing on floor, large, very large, gigantic Power source Line-shaft-drive versus individual electric motor drive Most line-shaft-drive machines, ubiquitous circa 1880–1930, have been scrapped by now Hand-crank-power versus electric