The following sections of this BookRags Literature Study Guide is offprint from Gale's For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author Biography, Plot Summary, Characters, Themes, Style, Historical Context, Critical Overview, Criticism and Critical Essays, Media Adaptations, Topics for Further Study, Compare & Contrast, What Do I Read Next?, For Further Study, and Sources.
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The following sections, if they exist, are offprint from Beacham's Guide to Literature for Young Adults: "About the Author", "Overview", "Setting", "Literary Qualities", "Social Sensitivity", "Topics for Discussion", "Ideas for Reports and Papers". (c)1994-2005, by Walton Beacham.
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1768-1822
French-Swiss mathematician who made important contributions in the area of complex numbers. Although Argand was, by profession, an accountant, he performed some high-quality work in mathematics. Perhaps most important was his geometrical interpretation of complex numbers in which i (the imaginary component) is plotted versus the real component of complex numbers on a plane. Other works included introducing the concept of the modulus of complex numbers and a proof of the fundamental theorem of algebra.