Ng¿ Miriona Mati Tuatahi o te Pi

Ko te Pi, te ōwehenga o te porowhita o te porowhita ki tōna whānui, kua mōhiotia mō ngā mano tau. I mua atu i te wā noa, kua kitea e ngā tohunga pāngarau o mua he whakatau tata mō te pi he tika ki ngā mati e rua (3.1). I whakamahia e ngā Pāpuroni te 25/8 hei whakatau tata mō te pi. I whakamahia e ngā Ihipiana o mua te 16/9 tapawhā mō te pi. Ko te hunga whai muri i whakapai ake i ngā whakatau tata mō te pi ko ngā tohunga pāngarau Hainamana. He tika te whakatau tata Hainamana ki ngā mati e whitu (3.141592).I Kariki, i whakamahia e Archimedes he polygon i tuhia ki waho o te porowhita, me te polygon i tuhia ki roto i te porowhita, ā, i whakawhānui i te pi ki ngā mati e toru (3.14). Hei whakamutunga, i te wā i whakawhanakehia ai ngā raupapa mutunga kore, ka taea e te tangata te tatau i te pi ki te pene me te pepa ki te maha o ngā mati e wātea ana ki te tangata. Nō te taenga mai o ngā rorohiko, kātahi anō ka whai hua te tatau i te pi ki te miriona mati. Anei ngā hua o tēnei pukapuka."Kāore pea he tohu i roto i te pāngarau i whakaoho ake i te nui o te mea ngaro, te aroha, te whakaaro hē me te hiahia tangata pērā i te tau pi"William L. Schaaf, Nature and History of Pi