pyspark.sql.functions.tan#

pyspark.sql.functions.tan(col)[source]#

Computes tangent of the input column.

New in version 1.4.0.

Changed in version 3.4.0: Supports Spark Connect.

Parameters

colColumn or column name: angle in radians

Returns

Column: tangent of the given value, as if computed by java.lang.Math.tan()

Examples

Example 1: Compute the tangent

>>> from pyspark.sql import functions as sf
>>> spark.sql(
...     "SELECT * FROM VALUES (0.0), (PI() / 4), (PI() / 6) AS TAB(value)"
... ).select("*", sf.tan("value")).show()
+------------------+------------------+
|             value|        TAN(value)|
+------------------+------------------+
|               0.0|               0.0|
|0.7853981633974...|0.9999999999999...|
|0.5235987755982...|0.5773502691896...|
+------------------+------------------+

Example 2: Compute the tangent of invalid values

>>> from pyspark.sql import functions as sf
>>> spark.sql(
...     "SELECT * FROM VALUES (FLOAT('NAN')), (NULL) AS TAB(value)"
... ).select("*", sf.tan("value")).show()
+-----+----------+
|value|TAN(value)|
+-----+----------+
|  NaN|       NaN|
| NULL|      NULL|
+-----+----------+