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 Encyclopedia of Popular Fiction: "Social Concerns", "Thematic Overview", "Techniques", "Literary Precedents", "Key Questions", "Related Titles", "Adaptations", "Related Web Sites". (c)1994-2005, by Walton Beacham.
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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940?-1000?
Persian mathematician and astronomer who was a leader in the application of Greek geometric methodology among Muslim scholars. Al-Quhi (sometimes spelled al-Kuhi), served the Buyid dynasty, whose caliphs ordered him to make a number of astronomical observations. For this purpose, he directed the building of an observatory in Baghdad, at which he served as director following its opening in 988. He discussed geometric problems involving quadratic or cubic equations, and described a conic compass, or one with a leg of variable length, for drawing conic sections.