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    • Complex numbers

    Fractional powers of -1

    The number line is a human created thing, and is not absolute. The original number line had {1,2,3,4}, later 0 was added, and later negative numbers. Complex numbers are less intuitive than those on the conventional number line, but are no less real (imaginary numbers is a bad name that makes them sound fake). Without complex numbers,

    What is e, and what does raising it to the i do?