This website presents historical evidence to confute the long-held view that linear algebra developed independently in the West. This website will communicate to a broader audience technical findings from my research monographs:
These findings suggest that we reconsider the assumption that mathematical and scientific practices of this period remained confined within the boundaries of what we now anachronistically call “civilizations.”
Today, linear algebra, along with calculus, is one of the most important core courses in modern mathematics at the university level.
The main problem of linear algebra is the solution of systems of n linear equations in n unknowns. There are two main solutions:
The earliest extant records of these two approaches to solving linear equations can be found in extant mathematical treatises from imperial China.
Traditional historical accounts attributed the origins of these techniques to the work of two preeminent European mathematicians, namely, the work of Gottfried Wilhelm Leibniz (1646–1716) on determinants, and the work of Carl Friedrich Gauss (1777–1855) on elimination. More recent research into the history of mathematics, however, has increasingly been revising the traditional accounts. It is now well-known that the earliest record of the algorithm we call Gaussian elimination is found in the Nine Chapters on the Mathematical Arts (Jiuzhang suanshu 九章算術, c. 1st century CE). Gaussian elimination in fact had many European contributors prior to Gauss; recent research has demonstrated conclusively that credit for the discovery of elimination cannot be attributed to Gauss himself. By the early twentieth century it was widely known that the Japanese mathematician Seki Takakazu 關 孝和 (c. 1642–1708) was working on determinants prior to Leibniz.
Relatively little has been published on the history of linear algebra before 1700, however, because the sources are in Chinese.
My own research on linear algebra in imperial China demonstrates that the elimination algorithms found in Chinese mathematical treatises are considerably more sophisticated than has been previously recognized, and that Chinese mathematical treatises also record determinantal-style calculations and solutions.
This website explains the history of linear algebra recorded in early Chinese treatises, leading to the following conclusions:
This website is divided into several sections.
Published Sources: This website is based on work published in my first two research monographs:
Roger Hart, The Chinese Roots of Linear Algebra (Johns Hopkins University Press, 2010). Project Muse: doi:10.1353/book.487. ISBN: 9780801897559. Amazon ASIN B07DFMM95S (Kindle) and 0801897556 (hardcover).
———, Imagined Civilizations: China, the West, and Their First Encounter (Johns Hopkins University Press, 2013). Project Muse: doi:10.1353/book.23819. ISBN: 9781421406060. Amazon ASIN: B00DTTWGUQ (Kindle) and 1421406063 (Hardcover).
Some of this research can be freely accessed through this website, published in the following article, available through the following link:
———, “Tracing Practices Purloined by the ‘Three Pillars,’” Korean Journal for the History of Science 34, no. 2 (2012): 287–358.
Further information: For complete details, including comprehensive bibliographies, footnotes, and technical information not provided in this website, please consult my research monographs (above).
Citations: In research to be published, please cite my published works, which provide complete information, rather than citing this website, which will be constantly under revision. Suggestions for proper citation are available through the following links for Chinese Roots of Linear Algebra and Imagined Civilizations, providing Chicago, MLA, APA, and Endnote formats.
© 2020 Roger Hart