File:Tessellation Postage Stamp Mathematics Deutsches Museum (176224142).jpg
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[edit]DescriptionTessellation Postage Stamp Mathematics Deutsches Museum (176224142).jpg |
Tessellation Postage Stamp Internationaler Mathematiker Kongress 1998 Berlin International Mathematics Congress 1998 Parkettierung mit Quadraten Tessellation with squares of different sizes Ein Rechteck in gleich grosse Quadrate aufzuteilen, ist leicht. Decomposing a rectangle into squares of different sizes is easy. Schwieriger ist die Parkettierung mit lauter verschiedenen Quadraten. Tessellating it with squares of all different size is more difficult. Moron gelang 1925 eine Zerlegung eines 32 x 33-Rechtecks in 9 unterschiedlich grosse Quadrate. Moron, in 1925, succeded in decoposing a 32 x 33 rectangle into 9 squares of different size. To give the problem a solution requires a total of 9 squares (Brooks, Smith, Stone and Tuttle, 1940) Zerlegung eines 176 x 177-Rechtecks in 11 Quadrate. Splitting of a 176 x 177 Rectangle into 11 squares. Duivjestijn succeeded in decomposing a 112 x 112 square into 21 squares. Decomposing a square into squares of all different sizes requires a total of at least 21 squares. (Duivjestijn 1962, 1978) Allowing some of the squares to occur several times simplifies the problem. "tessellation or tiling of the plane is a collection of plane figures that fills the plane with no overlaps and no gaps" <a href="http://en.wikipedia.org/wiki/Tessellation" rel="noreferrer nofollow">en.wikipedia.org/wiki/Tessellation</a>
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Date | |
Source | Tessellation Postage Stamp Mathematics Deutsches Museum |
Author | brewbooks from near Seattle, USA |
Camera location | 48° 07′ 49.11″ N, 11° 34′ 59.03″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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This image was originally posted to Flickr by brewbooks at https://flickr.com/photos/93452909@N00/176224142 (archive). It was reviewed on 4 December 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
4 December 2018
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Camera manufacturer | NIKON |
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Camera model | E5600 |
Exposure time | 1/27 sec (0.037037037037037) |
F-number | f/2.9 |
ISO speed rating | 100 |
Date and time of data generation | 10:15, 28 May 2006 |
Lens focal length | 5.7 mm |
Software used | E5600v1.0 |
File change date and time | 10:15, 28 May 2006 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 10:15, 28 May 2006 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 34 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |