Editing List of geometers (section)

== 1301–1800 AD ==
{| class=wikitable align=right
|- align=center
|[[File:Francesco Melzi - Portrait of Leonardo - WGA14795.jpg|80px]]<br>[[Leonardo da Vinci]]
|[[File:JKepler.jpg|80px]]<br>[[Johannes Kepler]]
|[[File:Gérard Desargues.jpeg|80px]]<br>[[Girard Desargues]]
|- align=center
|[[File:Frans Hals - Portret van René Descartes.jpg|80px]]<br>[[René Descartes]]
|[[File:Blaise Pascal Versailles.JPG|80px]]<br>[[Blaise Pascal]]
|[[File:GodfreyKneller-IsaacNewton-1689.jpg|80px]]<br>[[Isaac Newton]]
|- align=center
|[[File:Leonhard Euler 2.jpg|80px]]<br>[[Leonhard Euler]]
|[[File:Carl Friedrich Gauss.jpg|80px]]<br>[[Carl Gauss]]
|[[File:August Ferdinand Möbius.jpg|80px]]<br>[[August Möbius]]
|- align=center
|[[File:Lobachevsky 03 crop.jpg|80px]]<br>[[Nikolai Lobachevsky]]
|[[File:John Playfair by Sir Henry Raeburn.jpg|80px]]<br>[[John Playfair]]
|[[File:JakobSteiner.jpg|80px]]<br>[[Jakob Steiner]]
|}
* [[Piero della Francesca]] (1415–1492)
* [[Leonardo da Vinci]] (1452–1519) – [[Euclidean geometry]]
* [[Jyesthadeva]] (c. 1500 – c. 1610) – [[Euclidean geometry]], [[cyclic quadrilateral]]s
* [[Marin Getaldić]] (1568–1626)
* [[Jacques-François Le Poivre]] (1652–1710) – projective geometry
* [[Johannes Kepler]] (1571–1630) – (used geometric ideas in astronomical work)
* [[Edmund Gunter]] (1581–1686)
* [[Girard Desargues]] (1591–1661) – [[projective geometry]]; [[Desargues' theorem]]
* [[René Descartes]] (1596–1650) – invented the methodology of [[analytic geometry]], also called ''Cartesian geometry'' after him
* [[Pierre de Fermat]] (1607–1665) – [[analytic geometry]]
* [[Blaise Pascal]] (1623–1662) – [[projective geometry]]
* [[Christiaan Huygens]] (1629–1695) – [[evolute]]
* [[Giordano Vitale]] (1633–1711)
* [[Philippe de La Hire]] (1640–1718) – [[projective geometry]]
* [[Isaac Newton]] (1642–1727) – 3rd-degree [[algebraic curve]]
* [[Giovanni Ceva]] (1647–1734) – [[Euclidean geometry]]
* [[Johann Jacob Heber]] (1666–1727) – surveyor and geometer
* [[Giovanni Gerolamo Saccheri]] (1667–1733) – [[non-Euclidean geometry]]
* [[Leonhard Euler]] (1707–1783)
* [[Tobias Mayer]] (1723–1762)
* [[Johann Heinrich Lambert]] (1728–1777) – [[non-Euclidean geometry]]
* [[Gaspard Monge]] (1746–1818) – [[descriptive geometry]]
* [[John Playfair]] (1748–1819) – [[Euclidean geometry]]
* [[Lazare Nicolas Marguerite Carnot]] (1753–1823) – [[projective geometry]]
* [[Joseph Diaz Gergonne]] (1771–1859) – [[projective geometry]]; [[Gergonne point]]
* [[Carl Friedrich Gauss]] (1777–1855) – [[Theorema Egregium]]
* [[Louis Poinsot]] (1777–1859)
* [[Siméon Denis Poisson]] (1781–1840)
* [[Jean-Victor Poncelet]] (1788–1867) – [[projective geometry]]
* [[Augustin-Louis Cauchy]] (1789–1857)
* [[August Ferdinand Möbius]] (1790–1868) – [[Euclidean geometry]]
* [[Nikolai Ivanovich Lobachevsky]] (1792–1856) – [[hyperbolic geometry]], a [[non-Euclidean geometry]]
* [[Michel Chasles]] (1793–1880) – [[projective geometry]]
* [[Germinal Dandelin]] (1794–1847) – [[Dandelin spheres]] in [[conic sections]]
* [[Jakob Steiner]] (1796–1863) – champion of [[synthetic geometry]] methodology, [[projective geometry]], [[Euclidean geometry]]