**Girolamo Cardano** was born on September 24, 1501 in Pavia, Italy. He died on September 21, 1576 in Rome. Cardano was an Italian physicist and mathematician who devoted himself to mathematics, physics, astronomy, philosophy, medicine and astrology.

**N**mathematics, his masterpiece is the book ** Artis Magnae Sive by Regulis Algebraicis** (The great art or on the rules of algebra), published in 1545, where they are:

- the method of solving the degree 3 equations obtained from your friend **Tartaglia** (1499 - 1557), and grade 4, obtained from his disciple **Lovic Ferrari** (1522 - 1565);

- the rule "less times less gives more".