Argument Principle - History

History

According to the book by Frank Smithies (Cauchy and the Creation of Complex Function Theory, Cambridge University Press, 1997, p.177), Augustin Louis Cauchy presented a theorem similar to the above on 27 November 1831, during his self-imposed exile in Turin (then capital of the Kingdom of Piedmont-Sardinia) away from France. However, according to this book, only zeroes were mentioned, not poles. This theorem by Cauchy was only published many years later in 1974 in a hand-written form and so is quite difficult to read. Cauchy published a paper with a discussion on both zeroes and poles in 1855, two years before his death.

Read more about this topic:  Argument Principle

Famous quotes containing the word history:

    I believe that history might be, and ought to be, taught in a new fashion so as to make the meaning of it as a process of evolution intelligible to the young.
    Thomas Henry Huxley (1825–95)

    You treat world history as a mathematician does mathematics, in which nothing but laws and formulas exist, no reality, no good and evil, no time, no yesterday, no tomorrow, nothing but an eternal, shallow, mathematical present.
    Hermann Hesse (1877–1962)

    History is not what you thought. It is what you can remember. All other history defeats itself.
    In Beverly Hills ... they don’t throw their garbage away. They make it into television shows.
    Idealism is the despot of thought, just as politics is the despot of will.
    Mikhail Bakunin (1814–1876)