File:01-Winkel 4,153° 175,847°.svg
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Description01-Winkel 4,153° 175,847°.svg |
Deutsch: Näherungskonstruktion des Winkels 4,153° mit Supplementwinkel 175,847°
English: Proximity construction of the angle 4.153° with supplementary angle 175.847° |
Date | |
Source | Own work |
Author | Petrus3743 |
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Konstruktionsprinzip edit
- Einheitskreis Radius r = 1, in GeoGebra,
- Näherungskonstruktion mittels des dritten Strahlensatzes, siehe hierzu auch Konstruktion einer Dezimalzahl; auch allein mit Zirkel und Lineal möglich.
- Die Grundkonstruktion (Schema) besteht hauptsächlich aus einem horizontalen und fünf vertikalen Zahlenstrahlen.
- Ist der Winkel 45° ≥ α > 0° wird der Sinus von α bzw. β verwendet.
- Ist der Winkel 45° < α ≤ 135° wird der Kosinus von α bzw. β verwendet.
- Ist der Winkel 135° < α < 180° wird der Sinus von α bzw. β verwendet.
Fehler edit
Anmerkung: 1 Winkelsekunde = = 2,7E-4
- Absoluter Winkelfehler Fα ≈ -4,065E-6°
- Fehler der Sehne A1F1
- A1F1 ist die konstruierte Sehne S1K = 7,24675865282655E-2 [LE]
- Sehne S1SOLL = = 7,24676574450448E-2 [LE]
- Absoluter Fehler der Sehne FS1 = S1K - S1SOLL = -7,09...E-8 [LE]
- Bei einem Radius r = 100 km wäre der Fehler an der Sehne ca. -7,1 mm.
- Absoluter Winkelfehler Fβ ≈ 4,065E-6°
- Fehler der Sehne A1G1
- A1G1 ist die konstruierte Sehne S2K = 1,99868668102401 [LE]
- Sehne S2SOLL = = 1,99868667845274 [LE]
- Absoluter Fehler der Sehne FS2 = S2K - S2SOLL = 2,57...E-9 [LE]
- Bei einem Radius r = 1.000 km wäre der Fehler an der Sehne ca. 2,6 mm.
Construction principle edit
- Unit circle radius r = 1, in GeoGebra,
- Proximity construction by means of the third intercept theorem, see also Konstruktion einer Dezimalzahl; also possible with compass and ruler.
- The basic construction (scheme) consists mainly of one horizontal and five vertical number lines.
- If the angle 45° ≥ α > 0° the sinus of α resp. β will used.
- If the angle 45° < α ≤ 135° the cosine of α resp. β will used.
- If the angle 135° < α < 180° the sinus of α resp. β will used.
Error edit
Note: 1 angular seconds = = 2.7E-4
- Absolute error of the angle Fα ≈ -4.065E-6°
- Error of the chord A1F1
- A1F1 is the constructed chord S1K = 7.24675865282655E-2 [unit of length]
- Chord S1SHOULD = = 7.24676574450448E-2 [unit of length]
- Absolute error of the chord FS1 = S1K - S1SHOULD = -7.09...E-8 [unit of length]
- If the radius r = 100 km would be the error of the chord approx. -7.1 mm.
- Absolute error of the angle Fβ ≈ 4.065E-6°
- Error of the chord A1G1
- A1G1 is the constructed chord S2K = 1.99868668102401 [unit of length]
- Chord S2SHOULD = = 1.99868667845274 [unit of length]
- Absolute error of the chord FS2 = S2K - S2SHOULD = 2.57...E-9 [unit of length]
- If the radius r = 1,000 km would be the error of the chord approx. 2.6 mm.
Licensing edit
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:05, 12 November 2016 | 1,119 × 799 (387 KB) | Petrus3743 (talk | contribs) | Grundkonstruktion korrigiert | |
09:23, 1 November 2016 | 1,122 × 799 (404 KB) | Petrus3743 (talk | contribs) | Konstruktion nun für Winkel 0° < α < 180° | ||
09:55, 24 October 2016 | 1,114 × 888 (413 KB) | Petrus3743 (talk | contribs) | Kurzhinweise ergänzt | ||
16:48, 23 October 2016 | 1,114 × 888 (397 KB) | Petrus3743 (talk | contribs) | User created page with UploadWizard |
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Width | 31.588082310932656cm |
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Height | 22.56291593638047cm |