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  2. Traf-O-Data - Wikipedia

    en.wikipedia.org/wiki/Traf-O-Data

    The real contribution of Traf-O-Data was the experience that Gates and Allen gained, skills they used to write Altair BASIC for the MITS Altair 8800 computer: "Even though Traf-O-Data wasn't a roaring success, it was seminal in preparing us to make Microsoft's first product a couple of years later.

  3. Zigzag transformer - Wikipedia

    en.wikipedia.org/wiki/Zigzag_transformer

    A zigzag transformer winding is a special-purpose transformer winding with a zigzag or "interconnected star" connection, such that each output is the vector sum of two (2) phases offset by 120°. [1]

  4. Fourier transform - Wikipedia

    en.wikipedia.org/wiki/Fourier_transform

    An example application of the Fourier transform is determining the constituent pitches in a musical waveform.This image is the result of applying a constant-Q transform (a Fourier-related transform) to the waveform of a C major piano chord.

  5. Abel transform - Wikipedia

    en.wikipedia.org/wiki/Abel_transform

    A geometrical interpretation of the Abel transform in two dimensions. An observer (I) looks along a line parallel to the x axis a distance y above the origin. What the observer sees is the projection (i.e. the integral) of the circularly symmetric function f(r) along the line of sight.

  6. Stacking factor - Wikipedia

    en.wikipedia.org/wiki/Stacking_factor

    The stacking factor (also lamination factor or space factor [1]) is a measure used in electrical transformer design and some other electrical machines.It is the ratio of the effective cross-sectional area of the transformer core to the physical cross-sectional area of the transformer core.