Abu Al-Wafa
940-998
Persian Mathematician and Astronomer
Abu al-Wafa introduced the trigonometric functions of the secant and cosecant, and developed a method for computing sine tables. As an astronom...
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Abu Al-Wafa
940-998
Persian mathematician and astronomer, also known as Abul Wefa, who developed the first wall quadrant, used for observing the movement of heavenly bodies. In a work written in 960, ...
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Abu Al-Wafa