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Bartholomaeus Pitiscus is best known for his book called Trigonometria which was first published in Heidelburg in 1595. It consists of work on plane and spherical trigonometry. The book had the first recorded mention of the word "trigonometry".
Trigonometry
Bartholomaeus Pitiscus
Several great mathematicians have made contributions to trigonometry. Pitiscus wrote books on plane and spherical trigonometry, and Hipparchus produced a table of chords.
hipparchus
Samuel Pitiscus died in 1727.
Samuel Pitiscus was born in 1637.
Bartholomaeus Pitiscus was born in 1561.
Bartholomaeus Pitiscus died in 1613.
He defined the spherical triangle
He introduced coordinated geometry
There is no Contribution of Thales in the field of trignometry.........