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Pitiscus’ numerical solution for \(\sin 1 °\). (Chinese. English summary) Zbl 1449.01011

Summary: Since the Ptolemy (about 90–168) era, the exact value of \(\sin 1°\) had been related to the overall accuracy of the Sine table. It was the Persian mathematician Jamshid Mas’ud al-Kashi (1380–1429) who made the first breakthrough on this issue. For a long time, this problem also had puzzled many European mathematicians in the 16th century. It was the German mathematician Bartholomaeus Pitiscus (1561–1613) who made the first achievements in solution of the problem. This paper focused on the analysis of the \(\sin 1°\) numerical solution of Pitiscus and gave comparison of the operation process of the numerical solution of the \(\sin 1°\) between al-Kashi and Pitiscus.

MSC:

01A40 History of mathematics in the 15th and 16th centuries, Renaissance

Biographic References:

Pitiscus, Bartholomaeus
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