Mariano Eusebio Corazao Quintanilla, Peruvian mathematician (San Pedro de Calca, Cusco 15 December 1845 – Cusco 04 January 1913)
Enunciated three theorems about circle quadrature in 1905 (published in Boletín del Centro Cientifico del Cusco 13, 1907)
Derived a new general formula for rule of simple interest
Developed a new system of deduction in arithmetic
Eponym of Corazao number (16/π2)
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