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- Ptolemys_table_of_chords abstract "The table of chords, created by the astronomer, geometer, and geographer Ptolemy in Egypt during the 2nd century AD, is a trigonometric table in Book I, chapter 11 of Ptolemy's Almagest, a treatise on mathematical astronomy. It is essentially equivalent to a table of values of the sine function. It was the earliest trigonometric table extensive enough for many practical purposes, including those of astronomy (an earlier table of chords by Hipparchus gave chords only for arcs that were multiples of 7½° = π/24 radians). Centuries passed before more extensive trigonometric tables were created. One such table is the Canon Sinuum created at the end of the 16th century.".
- Ptolemys_table_of_chords thumbnail Chords.svg?width=300.
- Ptolemys_table_of_chords wikiPageExternalLink chords.shtml.
- Ptolemys_table_of_chords wikiPageExternalLink HeibergAlmagestComplete.pdf.
- Ptolemys_table_of_chords wikiPageID "30684123".
- Ptolemys_table_of_chords wikiPageLength "13119".
- Ptolemys_table_of_chords wikiPageOutDegree "33".
- Ptolemys_table_of_chords wikiPageRevisionID "707684949".
- Ptolemys_table_of_chords wikiPageWikiLink Almagest.
- Ptolemys_table_of_chords wikiPageWikiLink Aristarchus_inequality.
- Ptolemys_table_of_chords wikiPageWikiLink Canon_Sinuum.
- Ptolemys_table_of_chords wikiPageWikiLink Category:Elementary_special_functions.
- Ptolemys_table_of_chords wikiPageWikiLink Category:History_of_astronomy.
- Ptolemys_table_of_chords wikiPageWikiLink Category:History_of_mathematics.
- Ptolemys_table_of_chords wikiPageWikiLink Category:Trigonometry.
- Ptolemys_table_of_chords wikiPageWikiLink Chord_(geometry).
- Ptolemys_table_of_chords wikiPageWikiLink Circle.
- Ptolemys_table_of_chords wikiPageWikiLink Cyclic_quadrilateral.
- Ptolemys_table_of_chords wikiPageWikiLink Decagon.
- Ptolemys_table_of_chords wikiPageWikiLink Egypt.
- Ptolemys_table_of_chords wikiPageWikiLink Euclid.
- Ptolemys_table_of_chords wikiPageWikiLink Euclidean_geometry.
- Ptolemys_table_of_chords wikiPageWikiLink Euclids_Elements.
- Ptolemys_table_of_chords wikiPageWikiLink Exsecant.
- Ptolemys_table_of_chords wikiPageWikiLink File:Chords.svg.
- Ptolemys_table_of_chords wikiPageWikiLink Greek_alphabet.
- Ptolemys_table_of_chords wikiPageWikiLink Hexagon.
- Ptolemys_table_of_chords wikiPageWikiLink Hipparchus.
- Ptolemys_table_of_chords wikiPageWikiLink Johan_Ludvig_Heiberg_(historian).
- Ptolemys_table_of_chords wikiPageWikiLink Linear_interpolation.
- Ptolemys_table_of_chords wikiPageWikiLink Numeral_system.
- Ptolemys_table_of_chords wikiPageWikiLink Pentagon.
- Ptolemys_table_of_chords wikiPageWikiLink Ptolemy.
- Ptolemys_table_of_chords wikiPageWikiLink Ptolemys_theorem.
- Ptolemys_table_of_chords wikiPageWikiLink Quadrilateral.
- Ptolemys_table_of_chords wikiPageWikiLink Sexagesimal.
- Ptolemys_table_of_chords wikiPageWikiLink Sine.
- Ptolemys_table_of_chords wikiPageWikiLink Theoretical_astronomy.
- Ptolemys_table_of_chords wikiPageWikiLink Trigonometric_tables.
- Ptolemys_table_of_chords wikiPageWikiLink Versine.
- Ptolemys_table_of_chords wikiPageWikiLinkText "Ptolemy's table of chords".
- Ptolemys_table_of_chords wikiPageWikiLinkText "chords tabulated by Ptolemy".
- Ptolemys_table_of_chords wikiPageWikiLinkText "his table of chords".
- Ptolemys_table_of_chords wikiPageWikiLinkText "surviving table of Ptolemy".
- Ptolemys_table_of_chords wikiPageWikiLinkText "table of chords".
- Ptolemys_table_of_chords wikiPageWikiLinkText "those of".
- Ptolemys_table_of_chords wikiPageUsesTemplate Template:=.
- Ptolemys_table_of_chords wikiPageUsesTemplate Template:Citation.
- Ptolemys_table_of_chords wikiPageUsesTemplate Template:Frac.
- Ptolemys_table_of_chords wikiPageUsesTemplate Template:Main.
- Ptolemys_table_of_chords wikiPageUsesTemplate Template:Pi.
- Ptolemys_table_of_chords wikiPageUsesTemplate Template:Reflist.
- Ptolemys_table_of_chords subject Category:Elementary_special_functions.
- Ptolemys_table_of_chords subject Category:History_of_astronomy.
- Ptolemys_table_of_chords subject Category:History_of_mathematics.
- Ptolemys_table_of_chords subject Category:Trigonometry.
- Ptolemys_table_of_chords hypernym Table.
- Ptolemys_table_of_chords type Work.
- Ptolemys_table_of_chords type Function.
- Ptolemys_table_of_chords type Redirect.
- Ptolemys_table_of_chords comment "The table of chords, created by the astronomer, geometer, and geographer Ptolemy in Egypt during the 2nd century AD, is a trigonometric table in Book I, chapter 11 of Ptolemy's Almagest, a treatise on mathematical astronomy. It is essentially equivalent to a table of values of the sine function.".
- Ptolemys_table_of_chords label "Ptolemy's table of chords".
- Ptolemys_table_of_chords sameAs Q7257100.
- Ptolemys_table_of_chords sameAs m.0gh8jcl.
- Ptolemys_table_of_chords sameAs Q7257100.
- Ptolemys_table_of_chords wasDerivedFrom Ptolemys_table_of_chords?oldid=707684949.
- Ptolemys_table_of_chords depiction Chords.svg.
- Ptolemys_table_of_chords isPrimaryTopicOf Ptolemys_table_of_chords.
