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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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1400?-1489
Spanish Muslim mathematician whose Marasim al-intisab fi'ilm al-hisab is the earliest extant arithmetical treatise by a Muslim in Spain. One interesting characteristic of the text is the fact that al-Umawi apparently wrote it for use by mathematicians in the eastern Islamic world—al-Umawi later migrated to Damascus—at a time when the achievements of eastern Islamic mathematicians generally surpassed those of their counterparts in Spain and Morocco. Marasim examines topics such as addition, multiplication, arithmetic series, and geometric series.