Ptolemy's table of chords
2nd century CE trigonometric table
| rdfs:label |
"Ptolemy's table of chords"@en
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skos:alt |
"table of chords"@en
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| schema:description |
"2nd century CE trigonometric table"@en
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schema:date |
"2026-07-30T23:21:47+00:00"^^xsd:dateTime |
| schema:version | 2524974450 |
| wikibase:identifiers | 3 |
| wikibase:sitelinks | 5 |
| wikibase:statements | 7 |
| p:P10283 | wd:statement/Q7257100-106CB9E2-DFD6-4C09-AAB1-440BFB840F08 |
| p:P2534 | wd:statement/Q7257100-B07F7753-A1EC-484C-80E9-BE8316261F11 |
| p:P279 | wd:statement/Q7257100-a7a1613c-4b57-45d4-8e01-48a54074c99f |
| p:P31 | wd:statement/Q7257100-f7378a30-44a2-693c-d2bf-3fc1d94e5ae8 |
| p:P6104 | wd:statement/Q7257100-970722AA-4089-498D-A67F-34691515B62E |
| p:P6366 | wd:statement/Q7257100-B17FE9F8-8596-4CBE-A7C1-FCB4F5AF18F3 |
| p:P646 | wd:statement/Q7257100-A003E464-3709-4DF6-B393-13281EABE14D |
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p:direct- |
<https:/ |
| wdt:P10283 | "C46984397" |
| wdt:P2534 | "<math class="mwe-math-element mwe-math-element-inline" xmlns="http://www.w3.org/1998/Math/MathML"><mrow data-mjx-texclass="ORD"><mstyle displaystyle="true" scriptlevel="0"><mi data-mjx-texclass="OP" mathvariant="normal">chord</mi><mo>⁡</mo><mi>θ</mi><mo stretchy="false">=</mo><mn>1</mn><mn>2</mn><mn>0</mn><mspace width="0.167em"></mspace><mi>sin</mi><mo>⁡</mo><mrow data-mjx-texclass="INNER"><mo data-mjx-texclass="OPEN">(</mo><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><msup><mi>θ</mi><mrow data-mjx-texclass="ORD"><mo stretchy="false">∘</mo></mrow></msup></mrow><mrow data-mjx-texclass="ORD"><mn>2</mn></mrow></mfrac></mrow><mo data-mjx-texclass="CLOSE">)</mo></mrow><mo stretchy="false">=</mo><mn>6</mn><mn>0</mn><mo stretchy="false">⋅</mo><mrow data-mjx-texclass="INNER"><mo data-mjx-texclass="OPEN">(</mo><mn>2</mn><mspace width="0.167em"></mspace><mi>sin</mi><mo>⁡</mo><mrow data-mjx-texclass="INNER"><mo data-mjx-texclass="OPEN">(</mo><mrow data-mjx-texclass="ORD"><mfrac><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mi>π</mi><mi>θ</mi></mrow></mrow><mrow data-mjx-texclass="ORD"><mrow data-mjx-texclass="ORD"><mn>3</mn><mn>6</mn><mn>0</mn></mrow></mrow></mfrac></mrow><mrow data-mjx-texclass="ORD"><mtext> radians</mtext></mrow><mo data-mjx-texclass="CLOSE">)</mo></mrow><mo data-mjx-texclass="CLOSE">)</mo></mrow></mstyle></mrow></math>"^^http://www.w3.org/1998/Math/MathML |
| wdt:P279 | trigonometric table |
| wdt:P31 | mathematical concept |
| wdt:P6104 | WikiProject Mathematics |
| wdt:P6366 | "46984397" |
| wdt:P646 | "/m/0gh8jcl" |
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