The symbol of size refers to the symbol used to express the relationship between size in mathematics and logic, and the common symbol is greater than the symbol (>; ), less than the sign (
1, greater than sign (>): The greater than sign is used to indicate that one value is greater than another.
2. Less than sign (
3. Symbol greater than or equal to (≥): Symbol greater than or equal to. This is used to indicate that one value is greater than or equal to another value.
4. Less than or equal to sign (≤): The less than or equal to sign is used to indicate that one value is less than or equal to another value.
In order to distinguish these symbols, we can remember and understand them according to their shapes and meanings. The greater than sign and the less than sign are arrows with sharp angles facing in different directions, indicating the relationship between sizes. Greater than or equal to sign and less than or equal to sign add a bar on the basis of greater than or less than sign, indicating the relationship between greater than or equal to, less than or equal to.
In addition, the purpose of the symbol can be judged by comparing the size of two numerical values. If one value is greater than another value, the greater than sign is used; If one value is less than another value, the less than sign is used; If one value is greater than or equal to another value, the greater than sign or equal sign is used; If one value is less than or equal to another value, the less than or equal sign is used to start.
The use of mathematical symbols
1, indicating mathematical relationship: mathematical symbols can indicate the relationship between numerical values, such as greater than, less than, equal to, unequal to, etc. For example, the greater than sign (>; ) means that one value is greater than the other, and the equal sign (=) means that the two values are equal.
2. Representation operation: Mathematical symbols can represent various mathematical operations of Kaixun, such as addition (+), subtraction (-), multiplication (×), division is (), exponential operation () and so on. These symbols can concisely express the process and results of mathematical operations.
3. Representing a set: Mathematical symbols can represent the concepts and operations of a set, such as intersection, union and complement. , subset? Wait a minute. These symbols are used to describe and manipulate the elements and relationships of a collection.