They're actually many but I'll just mention 5 for each nationalities.
1. BRITISH MATHEMATICIANS
* John Adair
* John Craig
* James Gregory (or James Gregorie)
* William Jones
* Thomas Rudd
2. ENGLISH MATHEMATICIANS
* Thomas Allen
* Robert Anderson
* John Babington
* Robert Wood
3. FRENCH MATHEMATICIANS
* Pierre Vernier
* Antoine Gombaud
* Jean de Beaugrand
* Marie Crous
* Blaise Pascal
4. ITALIAN MATHEMATICIANS
* Galileo Galilei
* Andrea Argoli
* Bernardino Baldi
* Paolo Casati
* Orazio Grassi
Rene Decartes.(Pronounced Rin-a DAY-cart)
1678 is a date in the 17th century AD.
the answer to this question is 14 centurys
Rene Descates discovered it in the 17th century
leibniz
The mathematician in the 17th century who wrote the exponent after the unknown is Herigone.
The English mathematician John Wallis (1616 - 1703).
he was an astronomer, philosopher, physicist, and mathematician in the 16-17th century in italy
Rene Decartes.(Pronounced Rin-a DAY-cart)
interpolation theorem, discovered by Józef Marcinkiewicz
The idea of Cartesian coordinates was the brainchild of the French mathematician and philosopher Rene' Descartes in the early 17th century.
John Wallis
John Wallis
High level structured programming language named for 17th century mathematician Blaise Pascal
He was a German mathematician, astronomer, and astrologer, and key figure in the 17th century Scientific Revolution.
Cartesian coordinates after the 17th Century French mathematician and philosopher, Rene Descartes
AnswerJohn WallisSir Isaac Newton