The greater than sign, the less than sign and the equal sign are all written in the left half of Tian Zige, aligned up and down, occupying two squares, the upper left square and the lower left square. As shown in the figure below:

Greater than profile:

The greater than sign is the symbol of inequality operation in mathematics. The greater than sign is widely used in arithmetic, which is a necessary content for primary schools. In 1655, Wallis is used to mean "equal to or greater than", and in 1670, he also means "equal to or greater than" and "equal to or less than" respectively.

According to a letter Goldbach wrote to Euler in June 1734, the symbols ≧ and ≦ commonly used today were first adopted by a Frenchman, P. Bouguet (1698-1758), and gradually became popular.