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Astrology
41 items
Collection

Astrology

Astrological texts, as devices for imagining futures and predicting outcomes for people, draw on various mathematical artefacts and techniques. These texts need to be studied in detail to understand the mathematical practices embedded in the practice of astrology and their consequences.

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Kanakkatikaram
9 items
Collection

Kanakkatikaram

We use Kanakkatikaram to refer to a class of mathematical manuscripts that were in circulation in medieval and colonial Keralam and Tamil Nadu. These manuscripts exist in both Malayalam and Tamil. The oldest known Tamil manuscript dates back to the 15th century. While the Tamil manuscripts attribute authorship to a figure named Kari Nayanar, the Malayalam texts do not mention any author. Both sets of manuscripts deal with mathematical techniques such as the rule of three, systems of measurement and units, and problems that may be described as both practical and recreational. Kanakkatikaram texts typically organize their problems by context, such as nel kanakku (paddy calculations), pon kanakku (gold calculations), and nila kanakku (land calculations), among others. However, not all problems in the Kanakkatikaram corpus are strictly practical. Some address numbers and magnitudes that are unlikely to correspond to real-world experiences. We also include in this collection texts such as those titled Kanakkatikaram and Astanakolakalam.

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