File:Toán trù 算籌.jpg

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Summary

DescriptionToán trù 算籌.jpg	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	1899
Source	Cửu chương lập thành toán pháp 九章立成算法
Author	Phạm Phúc Cẩn 范福菫

Licensing

This work is in the public domain in Vietnam for one of the following reasons:

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	08:00, 31 March 2024		2,000 × 1,389 (576 KB)	Lachy70	Uploaded 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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Counting rods