This resource from Johns Hopkins University has audio and interactive components. Various forms of the Fourier series description for periodic signals are based on alternate ways of writing a cosine signal. This...
This interactive phasor page allows you to control the values of a rotating phasor and see a visualization of each change that is done. You can control: one, pos/neg, two, beats, delta, sawtooth, square, triangle, time...
This webpage from Johns Hopkins University provides an introduction to Fourier series. The site describes Fourier series in the context of audio tones, and interactive applets that illustrate the concepts involved are...
This course, presented by MIT and taught by professor Gilbert Strang, provides a review of linear algebra. Topics include differential equations of equilibrium; Laplace's equation and potential flow; boundary-value...
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