| --- |
| { |
| "title": "LOG2", |
| "language": "en" |
| } |
| --- |
| |
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| |
| ## log2 |
| |
| ### description |
| #### Syntax |
| |
| `DOUBLE log2(DOUBLE x)` |
| Returns the natural logarithm of `x` to base `2`. |
| |
| ### example |
| |
| ``` |
| mysql> select log2(1); |
| +-----------+ |
| | log2(1.0) | |
| +-----------+ |
| | 0 | |
| +-----------+ |
| mysql> select log2(2); |
| +-----------+ |
| | log2(2.0) | |
| +-----------+ |
| | 1 | |
| +-----------+ |
| mysql> select log2(10); |
| +--------------------+ |
| | log2(10.0) | |
| +--------------------+ |
| | 3.3219280948873622 | |
| +--------------------+ |
| ``` |
| |
| ### keywords |
| LOG2 |
