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...tance of this early work had a large impact on both contemporary and later mathematicians; for example, [[Abraham de Moivre]]. Bernoulli wrote the text between 1684 and 1689, including the work of mathematicians such as [[Christiaan Huygens]], [[Gerolamo Cardano]], [[Pierre de Fermat]], ...

...focused on the [[Ptolemy's table of chords|calculation of chords]], while mathematicians in India created the earliest-known tables of values for trigonometric rati ...PA235 235–236]|loc="Appendix 1: Hipparchus's Table of Chords"}} In the 2nd century AD, the Greco-Egyptian astronomer [[Ptolemy]] (from Alexandria, Egypt) cons ...

...r designed by a commission assembled by Pope Gregory XIII in the sixteenth century."}}{{efn|Many countries that use other calendars for religious purposes use ...ays; when Russia and Greece did so (for their civil calendars) in the 20th century, the jump was 13 days. For other countries and territories, see [[List of a ...