Ao redor do 265 d.C., o matemático do reino de Wei Liu Hui creou un algoritmo iterativo baseado en polígonos e o usou con un polígono de 3,072 lados para obter un valor de π de 3,1416. O matemático francés François Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis Louis
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