1, INT function is to round the number down to the nearest integer. Syntax INT(number) where number is a real number that needs to be rounded down.

2. Pay attention to when using this function: INT function is an integer function; Remove the decimal part directly without rounding; INT function always carries forward when dealing with negative decimals.

3. In practical work, the int function is rarely used alone, and it is usually nested with other formulas to complete the work.

In C/C++ programming language, int stands for integer variable, which is a data type and is used to define integer variable. It has different sizes in different compilation environments and different compilation and running environments. Integer variables, as the name implies, are quantities whose values can be changed. Integer variables represent integer data. In C language, the values of integer variables can be decimal, octal and hexadecimal, but binary numbers are stored in memory.