[feat] suppor the trigonometric math function docs, like sinh, asinh, acosh and atanh

docs/sql-manual/sql-functions/scalar-functions/numeric-functions/acosh.md

@@ -0,0 +1,93 @@
+---
+{
+    "title": "ACOSH",
+    "language": "en"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## Description
+
+Returns the hyperbolic arc cosine of `x`, or `NULL` if `x` is less than `1`.
+
+## Syntax
+
+```sql
+ACOSH(<x>)
+```
+
+## Parameters
+
+| Parameter | Description |  
+| -- | -- |  
+| `<x>` | The value for which the hyperbolic arc cosine value is to be calculated |  
+
+## Return Value  
+
+The acosh value of parameter `x`. 
+
+## Example
+
+```sql
+select acosh(0.0);
+```
+
+```sql
++------------+
+| acosh(0.0) |
++------------+
+|       NULL |
++------------+
+```
+
+```sql
+select acosh(-1.0);
+```
+
+```sql
++-------------+
+| acosh(-1.0) |
++-------------+
+|        NULL |
++-------------+
+```
+
+```sql
+select acosh(1.0);
+```
+
+```sql
++------------+
+| acosh(1.0) |
++------------+
+|          0 |
++------------+
+```
+
+```sql
+select acosh(10.0);
+```
+
+```sql
++-------------------+
+| acosh(10.0)       |
++-------------------+
+| 2.993222846126381 |
++-------------------+
+```

docs/sql-manual/sql-functions/scalar-functions/numeric-functions/asinh.md

@@ -0,0 +1,81 @@
+---
+{
+    "title": "ASINH",
+    "language": "en"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## Description
+
+Returns the hyperbolic arc sine of `x`.
+
+## Syntax
+
+```sql
+ASINH(<x>)
+```
+
+## Parameters
+
+| Parameter | Description |  
+| -- | -- |  
+| `<x>` | The value for which the hyperbolic arc sine value is to be calculated |  
+
+## Return Value  
+
+The asinh value of parameter `x`. 
+
+## Example
+
+```sql
+select asinh(0.0);
+```
+
+```sql
++------------+
+| asinh(0.0) |
++------------+
+|          0 |
++------------+
+```
+
+```sql
+select asinh(1.0);
+```
+
+```sql
++-------------------+
+| asinh(1.0)        |
++-------------------+
+| 0.881373587019543 |
++-------------------+
+```
+
+```sql
+select asinh(-1.0);
+```
+
+```sql
++--------------------+
+| asinh(-1.0)        |
++--------------------+
+| -0.881373587019543 |
++--------------------+
+```

docs/sql-manual/sql-functions/scalar-functions/numeric-functions/atanh.md

@@ -0,0 +1,93 @@
+---
+{
+    "title": "ATANH",
+    "language": "en"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## Description
+
+Returns the hyperbolic arc tangent of `x`, or `NULL` if `x` is not in the range `-1` to `1`(excluding `-1` and `1`).
+
+## Syntax
+
+```sql
+ATANH(<x>)
+```
+
+## Parameters
+
+| Parameter | Description |  
+| -- | -- |  
+| `<x>` | The value for which the hyperbolic arc tangent value is to be calculated |  
+
+## Return Value  
+
+The atanh value of parameter `x`. 
+
+## Example
+
+```sql
+select atanh(1.0);
+```
+
+```sql
++------------+
+| atanh(1.0) |
++------------+
+|       NULL |
++------------+
+```
+
+```sql
+select atanh(1.0);
+```
+
+```sql
++-------------+
+| atanh(-1.0) |
++-------------+
+|        NULL |
++-------------+
+```
+
+```sql
+select atanh(1.0);
+```
+
+```sql
++------------+
+| atanh(0.0) |
++------------+
+|          0 |
++------------+
+```
+
+```sql
+select atanh(1.0);
+```
+
+```sql
++--------------------+
+| atanh(0.5)         |
++--------------------+
+| 0.5493061443340548 |
++--------------------+
+```

docs/sql-manual/sql-functions/scalar-functions/numeric-functions/sinh.md

@@ -0,0 +1,81 @@
+---
+{
+    "title": "SINH",
+    "language": "en"
+}
+---
+
+<!-- 
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+## Description
+
+Returns the hyperbolic sine of `x`.
+
+## Syntax
+
+```sql
+SINH(<x>)
+```
+
+## Parameters
+
+| Parameter | Description |  
+| -- | -- |  
+| `<x>` | The value for which the hyperbolic sine value is to be calculated |  
+
+## Return Value  
+
+The sinh value of parameter `x`.
+
+## Example
+
+```sql
+select sinh(0.0);
+```
+
+```
++-----------+
+| sinh(0.0) |
++-----------+
+|         0 |
++-----------+
+```
+
+```sql
+select sinh(1.0);
+```
+
+```
++--------------------+
+| sinh(1.0)          |
++--------------------+
+| 1.1752011936438014 |
++--------------------+
+```
+
+```sql
+select sinh(-1.0);
+```
+
+```
++---------------------+
+| sinh(-1.0)          |
++---------------------+
+| -1.1752011936438014 |
++---------------------+
+```