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  1. A list of symbols for keys found on most keyboards

    This is a handy list of symbols that can help a lot when laying down keyboard shortcuts on tutorials or README pages. The * marks symbols that are not commonly used; those keys are usually referred by their names or an abbreviation.

    Symbol Key
    ^ Ctrl/Control (Mac notation)
    Ctrl/Control (Unicode ...
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  2. The Kepler-Bouwkamp Constant

    Follow this construction: draw a circle and inscribe a triangle inside it; inscribe a circle inside this triangle and repeat the process, now inscribing a square. Continue this steps using pentagons, hexagons, heptagons, etc. The ratio between the radius of the outer circle and the inner limit circle is called ...

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