Greater than sign: the opening direction is to the left, written as ">", and the first number is greater than the last number.

Less than sign: the opening direction is correct, written as "

Memory formula: the place where the opening faces is large, and the place where the sharp corner faces is small.

Other inequality symbols

The mathematical symbol greater than or equal to is ≥. When one value is greater than another value or two numbers are equal, the symbol ≥ is used, which is also called "not less than". For any two real numbers A and B, their corresponding points A and B can be found on the same axis. If point A is to the right of point B or A and B coincide, then A ≥ B..

Less than or equal to is a way to judge that the value on the left side of inequality is less than or equal to the value on the right side of inequality, and the symbol is "≤". Such as 3≤5. It will appear in all kinds of mathematics or programming. In the proposition, less than or equal to is less than or equal to, as long as one condition is met. Less than or equal to is also called not greater than.