File:Traditional Chinese abacus illustrating the suspended bead use.jpg
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![File:Traditional Chinese abacus illustrating the suspended bead use.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Traditional_Chinese_abacus_illustrating_the_suspended_bead_use.jpg/800px-Traditional_Chinese_abacus_illustrating_the_suspended_bead_use.jpg)
Size of this preview: 800 × 434 pixels. Other resolutions: 320 × 174 pixels | 640 × 348 pixels | 1,024 × 556 pixels | 1,801 × 978 pixels.
Original file (1,801 × 978 pixels, file size: 426 KB, MIME type: image/jpeg)
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Summary
DescriptionTraditional Chinese abacus illustrating the suspended bead use.jpg |
English: Using traditional multiplication and division techniques requires that some of the rods of the abacus temporarily hold values as high as 19, which would require the presence of three beads on top. With only two upper beads, the third can be simulated or coded using the "suspended bead". The image shows values from 8 on the left to 20 on the right. Note the use of the suspended bead on the five rightmost rods.
Español: El uso de técnicas tradicionales de multiplicación y división requiere que algunas de las varillas del ábaco mantengan temporalmente valores tan altos como 19, lo que requeriría la presencia de tres cuentas en la parte superior. Con solo dos cuentas superiores, la tercera se puede simular o codificar utilizando la "cuenta suspendida". La imagen muestra valores desde 8 a la izquierda hasta 20 a la derecha. Nótese el uso de la cuenta suspendida en las cinco varillas de la derecha. |
Date | |
Source | Own work |
Author | Jccsvq |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
Captions
Traditional suanpan (Chinese abacus) illustrating the use of suspended beads
Suanpan tradicional (ábaco chino) mostrando el uso de cuentas suspendidas
Items portrayed in this file
depicts
5 July 2021
0.03030303030303030303 second
1.7
4.25 millimetre
320
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:00, 6 July 2021 | ![]() | 1,801 × 978 (426 KB) | wikimediacommons>Jccsvq | Uploaded own work with UploadWizard |
File usage
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Metadata
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Image title | Traditional Chinese abacus illustrating the use of the suspended bead to represent values greater than 15 |
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Camera manufacturer | OnePlus |
Camera model | ONEPLUS A6013 |
Exposure time | 1/33 sec (0.03030303030303) |
F-number | f/1.7 |
ISO speed rating | 320 |
Date and time of data generation | 18:10, 5 July 2021 |
Lens focal length | 4.25 mm |
User comments | Traditional Chinese abacus illustrating the use of the suspended bead to represent values greater than 15 |
Altitude | 0 meters above sea level |
JPEG file comment | Traditional Chinese abacus illustrating the use of the suspended bead to represent values greater than 15 |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | GIMP 2.10.18 |
File change date and time | 05:08, 6 July 2021 |
Subsampling ratio of Y to C |
|
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 18:10, 5 July 2021 |
Meaning of each component |
|
Shutter speed | 5.058 |
APEX aperture | 1.53 |
APEX brightness | −2.85 |
Exposure bias | 0 |
Maximum land aperture | 1.53 APEX (f/1.7) |
Metering mode | Center weighted average |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
DateTime subseconds | 392309 |
DateTimeOriginal subseconds | 392309 |
DateTimeDigitized subseconds | 392309 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | Undefined |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 25 mm |
Scene capture type | Standard |
Unique image ID | b1d3e16dd0ff99050000000000000000 |
GPS time (atomic clock) | 16:10 |
GPS date | 5 July 2021 |
GPS tag version | 0.0.2.2 |