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Calvin College, located on a 400-acre campus in Grand Rapids, Michigan, is a top-rated, four-year, Christian liberal arts college offering 100 majors and programs.

The Physics Classroom is an online interactive tutorial of basic physics concepts. The lessons use an easy-to-understand language to present common physics principles discussed in a first-year high school physics course.

Wolfram|Alpha gives you access to the world

Rose-Hulman is a leader in engineering, science and mathematics education offering bachelor

MIT is devoted to the advancement of knowledge and education of students in areas that contribute to or prosper in an environment of science and technology.

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Swarthmore College, noted for its Honors Program, integrates ethical and social responsibility throughout its liberal arts and engineering curriculum.

Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. ...

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Solved problems in Electrical Circuits, Calculus, ... Solutions are explained thoroughly with a very simple language. New solved problems are being added continuously. Ask your questions and get involved in discussions.