pyspark.sql.functions.cot#

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

Computes cotangent of the input column.

Added in version 3.3.0.

Changed in version 3.4.0: Supports Spark Connect.

Parameters:

colColumn or column name

angle in radians. A column that evaluates to a double.

Returns:

Column

cotangent of the angle. Returns a column that evaluates to a double.

See also

pyspark.sql.functions.tan()

Examples

Example 1: Compute the cotangent

>>> from pyspark.sql import functions as sf
>>> spark.sql(
...     "SELECT * FROM VALUES (PI() / 4), (PI() / 16) AS TAB(value)"
... ).select("*", sf.cot("value")).show()
+-------------------+------------------+
|              value|        COT(value)|
+-------------------+------------------+
| 0.7853981633974...|1.0000000000000...|
|0.19634954084936...| 5.027339492125...|
+-------------------+------------------+

Example 2: Compute the cotangent of invalid values

>>> from pyspark.sql import functions as sf
>>> spark.sql(
...     "SELECT * FROM VALUES (0.0), (FLOAT('NAN')), (NULL) AS TAB(value)"
... ).select("*", sf.cot("value")).show()
+-----+----------+
|value|COT(value)|
+-----+----------+
|  0.0|  Infinity|
|  NaN|       NaN|
| NULL|      NULL|
+-----+----------+