Lagrange was a mathematical giant of the 18th century, making significant contributions in the field of analytical mechanics. His establishment of the Lagrange equations reconstructed the mechanics system, freeing it from dependence on geometry. He also made breakthroughs in number theory, such as proving that every natural number can be expressed as the sum of four square numbers. Additionally, he participated in the reform of weights and measures, promoting the widespread use of the decimal system. The achievements of this prolific scholar continue to shine in the fields of physics and mathematics, making him a brilliant star in the history of science. #lagrange $LA @Lagrange Official