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File:Toán trù 算籌.jpg

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Summary

Description
English: Toán trù 算籌 (counting rods) in a Vietnamese mathematics textbook Cửu chương lập thành toán pháp 九章立成算法 shown at the bottom of the page.
Date
Source Cửu chương lập thành toán pháp 九章立成算法
Author Phạm Phúc Cẩn 范福菫

Licensing

Public domain
This work is in the public domain in Vietnam for one of the following reasons:
  • It is a cinematographic work, photographic work, work of applied art or anonymous work first published more than 75 years ago. (See Commons:Copyright rules by territory/Vietnam)
  • It is a cinematographic work, photographic work, dramatic work, work of applied art or anonymous work first published more than 50 years prior to January 1, 2010.
  • It is another type of work, and the creator died more than 50 years ago.
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Date/TimeThumbnailDimensionsUserComment
current08:00, 31 March 2024Thumbnail for version as of 08:00, 31 March 20242,000 × 1,389 (576 KB)Lachy70Uploaded a work by Phạm Phúc Cẩn 范福菫 from Cửu chương lập thành toán pháp 九章立成算法 with UploadWizard

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