The greater than sign is an inequality operation symbol in mathematics, and the greater than sign and less than sign are written as >; 、& lt。 The opening faces forward, the vertex faces backward and is larger than the symbol, the opening faces backward and the vertex faces forward and is smaller than the symbol.
Knowledge expansion
Englishman harriot began to use the common symbol "greater than" in 163 1. And "less than" symbol.
According to a letter Goldbach wrote to Euler in June 1734+0, the symbols ≧ and ≦ commonly used today were first adopted by a Frenchman, and then gradually became popular. Poincare and Borel introduced symbols in 190 1, which were quickly accepted by the mathematical community and are still in use today.
Symbolic characteristics of 1. greater than sign
The greater than sign is ">", and the number written on the left is greater than the number on the right. For example, 5>3 means that 5 is greater than 3.
2. Symbolic characteristics of less than sign
The less than sign is "
3. Symbolic characteristics of equal sign
The equal sign is represented by "=", and the number written on the left is equal to the number on the right. For example, 4=4 means 4 equals 4.
4. The application of greater than sign, less than sign and equal sign in mathematics.
In mathematics, the greater than sign and the less than sign are often used to indicate the size relationship of numerical values, so as to sort the numerical values. For example, in a series, we can use the greater than sign and the less than sign to compare the size of the numbers, so as to sort them.
5. Equation and the application of equal sign in equation.
The equal sign indicates the equation and the equivalent relationship in the equation. For example, in Equation 5=5, the equal sign means that the number on the left and the number on the right are equal. In the equation, the equal sign is often used to express the relationship between unknown quantity and known quantity, and the value of unknown quantity can be obtained by solving the equation.