The formula of peach heart in Cartesian two-dimensional coordinate system: r=a( 1-sinθ).

Major achievements

Descartes' contribution to science is various. Descartes not only opened up a new path in the field of philosophy, but also was a scientist who dared to explore. He made commendable innovations in physics, physiology and other fields, especially in mathematics. He founded analytic geometry, which opened the door to modern mathematics and was of epoch-making significance in the history of science.

However, his philosophy and methodology play a more important role in his life activities. His philosophical thoughts had a great influence on the later development of philosophy and science.