# Algorithm & Expression

## Available Operator

|          Name          | Operator                                                                           | Simple                                                                             |
| :--------------------: | ---------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------- |
|         + - × ÷        | + - \* /                                                                           |                                                                                    |
|         modulo         | #                                                                                  |                                                                                    |
|        brackets        | ( )                                                                                |                                                                                    |
|           and          | @&                                                                                 |                                                                                    |
|           or           | @\|                                                                                |                                                                                    |
|           xor          | @^                                                                                 |                                                                                    |
|           not          | @\~                                                                                |                                                                                    |
|  Continuous summation  | b1+b2+···+b14                                                                      | sum(1:14)                                                                          |
|     Continuous XOR     | b1 xor b2 xor ··· xor b10                                                          | sum(1:10)                                                                          |
| Continuous logical AND | b1 and b2 and ··· and b14                                                          | and(1:14)                                                                          |
|       CRC8/CRC16       | [Know more](https://why.yuyeye.cc/post/how-to-calculate-crc8-and-crc16-in-mtools/) | [Know more](https://why.yuyeye.cc/post/how-to-calculate-crc8-and-crc16-in-mtools/) |

## Example

| Rule              | Expression       |
| ----------------- | ---------------- |
| `b2 = b1`         | `b2=b1`          |
| `b4 = b2 + 0x1F`  | `b4 = b2 + 31`   |
| `b15 = b0 xor b1` | `b15 = b0 @^ b1` |
| `b2= not b0`      | b2 = @\~b0       |

* *Please convert the hexadecimal number to decimal* 
* *Drag expression up/down to change the sequence*
* The calculation starts from the top to the end.

## Extended Usage

Visit [mXparser](http://mathparser.org/?s=Bitwise) WebSite