Checked content

File:Yanghui triangle.gif

Description Drawing of en:Pascal's Triangle published in 1303 by en:Zhu Shijie (1260-1320), in his Si Yuan Yu Jian. It was called Jia Xian triangle or Yanghui Triangle by the Chinese, after the mathematician and en:Yang Hui. The fourth entry from the left in the second row from the bottom appears to be a typo (34 instead of 35, correctly given in the fifth entry in the same row).
Date 1260-1320
Source
Author Yáng Huī (楊輝), ca. 1238–1298)
Permission
( Reusing this file)
Public domain This image (or other media file) is in the public domain because its copyright has expired.

This applies to Australia, the European Union and those countries with a copyright term of life of the author plus 70 years.

Dialog-warning.svg You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years, Russia has 74 years for some authors. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement the rule of the shorter term.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
Annotations This image is annotated: View the annotations at Commons
No GIF.svg      This image was (or all images in this article or category were) uploaded in the GIF format, while a different format would have been more suitable. Commons discourages the use of GIF files, except for animations. See Commons:File types for more information.

If possible, please upload a PNG version (or JPEG for some photos) of this image, and mark the GIF image as {{ superseded|Image:new image name}}. If you like, encourage other Wikimedia projects using the GIF to use the new version instead.

If this image is a diagram or other image suitable for vectorisation, please tag this image with {{ convert to SVG}} instead of {{ badGIF}}. If not suitable for vectorisation, use {{ convert to PNG}}.
The following pages on Schools Wikipedia link to this image (list may be incomplete):

Background information

All five editions of Schools Wikipedia were compiled by SOS Childrens Villages. More than 2 million people benefit from the global charity work of SOS Children's Villages, and our work in 133 countries around the world is vital to ensuring a better future for vulnerable children. We have helped children in Africa for many years - you can help too...