Revision as of 21:10, 10 March 2018 edit ToBeFree (talk \| contribs) Checkusers, Oversighters, Administrators 132,587 edits m Reverted edits by 2601:85:C101:AF0:3C03:8734:36E4:DD4 (talk) (HG) (3.3.3) Tags: Huggle Rollback ← Previous edit		Revision as of 02:39, 2 April 2018 edit undo 2600:1700:b170:d120:c8a1:b7a0:d801:5762 (talk) →Iterative algorithm Next edit →
Line 61: Bisect {{math\|AB}} with line {{math\|OPC}}, {{math\|AC}} becomes one side of [[dodecagon]] (12-gon), let its length be {{math\|m}}. Let the length of {{math\|PC}} be {{math\|j}} and the length of {{math\|OP}} be {{math\|G}}. {{math\|AOP}}, {{math\|APC}} are two right angle triangles. Liu Hui used the [[Pythagorean theorem\|Gou Gu theorem]] repetitively: : <math>{} G^2 = r^2 - \left(\tfrac{M}{2}\right)^2</math>

Liu Hui's π algorithm: Difference between revisions