Perhaps the most commonly held view is that the value 11/83 is due to Ptolemy and not to Eratosthenes. Heath argues that Eratosthenes used 24 and that 11/83 of 180 was a refinement due to Ptolemy . Taisbak agrees with attributing 11/83 to Ptolemy although he believes that Eratosthenes used the value 2/15 of 180 . However Rawlins believes that a continued fraction method was used to calculate the value 11/83 while Fowler proposes that the anthyphairesis (or Euclidean algorithm) method was used (see also).
Marahil ang pinaka-karaniwang hawak na tingnan ay ang halaga na 11 / 83 ay dahil sa Ptolemy at hindi sa Eratosthenes. Heath argues na Eratosthenes ginamit na 24 at 11 / 83 ng 180 ay isang refinement dahil sa Ptolemy. Taisbak ay sumasang-ayon sa attributing 11 / 83 sa Ptolemy kahit na siya ay naniniwala na Eratosthenes ginamit ang halaga ng 2 / 15 ng 180. Subalit Rawlins ay naniniwala na ang isang maliit na bahagi ang patuloy na pamamaraan ay ginagamit upang kalkulahin ang halaga ng 11 / 83 habang Fowler ay nagmumungkahi na ang anthyphairesis (o Euclidean algorithm) method ay ginagamit (tingnan din).