Bartholomaeus Pitiscus

Front Cover of the 1612 edition of Trigonometriæ sive de dimensione triangulorum libri quinque.

Bartholomaeus Pitiscus (also Barthélemy or Bartholomeo; August 24, 1561 – August 24, 1613) was a 16th-century German trigonometrist, astronomer and theologian who first coined the word trigonometry.


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