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Updated: August 13, 2026
The University of Leyden still retains a manuscript treatise on the algebra of cubic equations, by Omar ibn Ibrahim; and Casiri, who, preserved and classed 1851 manuscripts, even after a fire had destroyed the magnificent collection or the Escurial, informs us, that the principles and praises of algebraic science were sung in an elaborate poem by Alcassem, a native of Grenada.
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