exterior algebra

@exterioralgebra

Brief notes to self on random stuff, but mainly math.

Vrijeme pridruživanja: srpanj 2017.

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  1. 6. velj

    This Professor’s ‘Amazing’ Trick Makes Quadratic Equations Easier

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    4. velj

    17 Equations that changed the world!

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  3. 5. velj
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    5. velj
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  5. 2. velj

    How mapping terrain gave birth to differential geometry...

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  6. 2. velj

    Rostropovich's Prelude of the Suite No. 1 grabs one's attention and tells a story of cosmic pain with urgency; Yo-Yo Ma's delights introspectively in the pain hidden in each note, taking almost an extra minute to meditate on it.

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  7. 2. velj

    Geodesics explained intuitively through beautiful plots:

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  8. 2. velj
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    A trivial computation: If IQ mapped to intelligence rather than unintelligence (i.e. <70), where are the 800,000 geniuses? Trivial.

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  10. 1. velj
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    1. velj
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    31. sij
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  13. 30. sij
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  14. 30. sij

    Reading tea leaves in the stock market yields cool plots:

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  15. 30. sij

    Follow any one of these jars twisting along a Möbius strip.

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    28. sij

    This just made me realize an incongruence in math terminology. Domain = set of input values that map to something Range = set of output values that get mapped to Codomain = set of output values that COULD get mapped to What's the set of input values that COULD map to something?

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  17. 27. sij

    In a space curve, Frenet's triad [right] calls for unitary vectors. However, skipping normalization [left] enables visualizing the decrease in magnitude of the curvature vector (red) as the spirals get looser. The tangent vector is in magenta. Their cross product in yellow.

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  18. 26. sij

    Impossible to feel down with this explosion of color.

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  19. 26. sij

    [Notebook] A precise explanation of the P - Value - Online Technical Discussion Groups—Wolfram Community

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    26. sij
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