File:Adriaan van Wijngaarden signature.jpg
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DescriptionAdriaan van Wijngaarden signature.jpg |
English: The signature of Adriaan van Wijngaarden, scanned from the book “Grammars for Programming Languages” that was sent to him by the authors (J. Craig Cleaveland and Robert C. Uzgalis) in 1977. After he passed away, the book was inherited by the library of Centrum Wiskunde & Informatica in Amsterdam. |
Date | |
Source | Own work |
Author | Spider |
Licensing edit
Public domainPublic domainfalsefalse |
This signature is believed to be ineligible for copyright and therefore in the public domain because it falls below the required level of originality for copyright protection both in the United States and in the source country (if different). In this case, the source country (e.g. the country of nationality of the signatory) is believed to be The Netherlands.
Note that this tag cannot be used on all signatures, as not all signatures are copyright-free.
See Commons:When to use the PD-signature tag for an explanation of when the tag may be used. |
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution 3.0 Unported 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.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:15, 13 November 2013 | 2,071 × 545 (422 KB) | Spider (talk | contribs) | better in grayscale | |
14:04, 13 November 2013 | 2,071 × 545 (350 KB) | Spider (talk | contribs) | User created page with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | SAMSUNG |
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Camera model | GT-S6810P |
Exposure time | 1/33 sec (0.03030303030303) |
F-number | f/2.7 |
ISO speed rating | 100 |
Date and time of data generation | 11:35, 13 November 2013 |
Lens focal length | 3.43 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | S6810PXXAMC4 |
File change date and time | 11:35, 13 November 2013 |
Exif version | 2.2 |
Date and time of digitizing | 11:35, 13 November 2013 |
APEX exposure bias | 0 |
Metering mode | Center weighted average |
Flash | Flash did not fire |
Supported Flashpix version | 1 |
Color space | sRGB |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |