On the Romance of Mathematicians

There are many romantic expressions in the world. Writers play with words to express romance, artists play with pictures or music to render romance, and mathematicians also have their own romantic ways. The most famous is Descartes, a great mathematician, and the electrocardiogram curve (also known as electrocardiogram) he discovered.

Rene descartes (1596— 1650) is a famous French philosopher, scientist and mathematician. He made an important contribution to the development of modern mathematics, and was known as the father of analytic geometry because he formulated the geometric coordinate system. He was also the founder of modern western philosophy and the pioneer of modern materialism, and put forward the idea of "universal doubt". His philosophical thoughts deeply influenced later Europeans and opened up the so-called "European rationalism" philosophy. It is said that Descartes met 18-year-old Swedish princess Christine at the age of 57, and Descartes has been sending her 13 love letters, that is, in the last letter, there is only a short mathematical formula: r = a (1-sin θ). This is the famous heart-shaped curve: