Number system conversion is a common problem in mathematics, especially in the field of computer science. Different decimal numbers are expressed in different forms in the computer. When we need to calculate different decimal numbers, we need to convert them first. Because computers can only recognize binary numbers, we convert other binary numbers into binary numbers and then calculate them.
Besides the commonly used decimal and binary, we also have other decimal numbers such as octal and hexadecimal, among which octal and hexadecimal are widely used in computers. In actual programming, we often need to convert data types such as integers or characters from one binary number to another. Therefore, it is very important to master the number system conversion and its corresponding algorithms and skills.