John W. Campbell because of lack of credits for French and trigonometry. He also attended, without graduating, the Massachusetts Institute of Technology (MIT), where he was befriended by the mathematician Norbert Wiener (who coined the term "cybernetics") – but he failed German and MIT dismissed him. After one year at Duke University, he graduated with a Bachelor of Science in physics in 1932. Campbell began writing science fiction at age 18 while attending MIT and sold his first stories quickly. From January 1930 to June 1931, "Amazing Stories" published six of his short stories, one novel, and six letters. Campbell was editor of
Wiener series by Norbert Wiener used in signal processing. Given a system with an input/output pair formula_1 where the input is white noise with zero mean value and power A, we can write the output of the system as sum of a series of Wiener G-functionals formula_2 In the following the expressions of the G-functionals up to the fifth order will be given: formula_3 formula_4 formula_5 formula_6 formula_7 formula_8 formula_9 formula_10 formula_11 Wiener series In mathematics, the Wiener series (or "Wiener G-functional expansion") originates from the 1958 book of Norbert Wiener. It is an orthogonal expansion for nonlinear functionals closely related to