Cuna

Calcula la cotangente de la columna de entrada. Soporta Spark Connect.

Para obtener la función SQL de Databricks correspondiente, consulte cot function.

Syntax

from pyspark.databricks.sql import functions as dbf

dbf.cot(col=<col>)

Parámetros

Parámetro	Tipo	Description
col	pyspark.sql.Column or column name	ángulo en radianes.

Devoluciones

pyspark.sql.Column: cotangent del ángulo.

Examples

from pyspark.databricks.sql import functions as dbf
spark.sql("SELECT * FROM VALUES (PI() / 4), (PI() / 16) AS TAB(value)").select("*", dbf.cot("value")).show()

+-------------------+------------------+
|              value|        COT(value)|
+-------------------+------------------+
| 0.7853981633974...|1.0000000000000...|
|0.19634954084936...| 5.027339492125...|
+-------------------+------------------+

from pyspark.databricks.sql import functions as dbf
spark.sql("SELECT * FROM VALUES (0.0), (FLOAT('NAN')), (NULL) AS TAB(value)").select("*", dbf.cot("value")).show()

+-----+----------+
|value|COT(value)|
+-----+----------+
|  0.0|  Infinity|
|  NaN|       NaN|
| NULL|      NULL|
+-----+----------+