2, ≤, less than or equal to the sign, used between non-equations.

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.

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". 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".

Extended data:

Englishman harriot began to use the common symbol "greater than" in 163 1. And "less than" symbol.

According to a letter written by Goldbach to Euler in June of 1734+0, the common symbols of "≧" and "≦" are a Frenchman P? Cloth (1698- 1758) was first adopted, and then it gradually became popular.

Poincare and Borel introduced the symbols "<< (far less than) and" > >; " (much greater than), it was quickly accepted by the mathematical community and is still in use today.

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