% This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.

**Example**

```esql
ROW a=1.8
| EVAL tanh=TANH(a)
```

| a:double | tanh:double |
| --- | --- |
| 1.8 | 0.9468060128462683 |