FRANCOIS VIETE

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• A French mathematician whose work on new algebra was an important step towards modern algebra, due to its innovative use of letters as parameters in equations

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• When France was at war with Spain, Viete deciphered a secret code containing several hundred used by the Spanish king.

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• He invented a method for approximating the solutions to equations as high as the sixth degree.

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• His most famous work divides algebra into three branches: translating problems into equations, solving equations, and proving theorems with equations.