tan
Calcule la tangente de la colonne d'entrée. Prend en charge Spark Connect.
Pour la fonction Databricks SQL correspondante, consultez la fonctiontan.
Syntaxe
Python
from pyspark.sql import functions as dbf
dbf.tan(col=<col>)
parameter
parameter | Type | Description |
|---|---|---|
|
| angle en radians |
Renvoie
pyspark.sql.Column: tangente de la valeur donnée, comme si elle était calculée par java.lang.Math.tan()
Exemples
Python
from pyspark.sql import functions as dbf
spark.sql(
"SELECT * FROM VALUES (0.0), (PI() / 4), (PI() / 6) AS TAB(value)"
).select("*", dbf.tan("value")).show()
Output
+------------------+------------------+
| value| TAN(value)|
+------------------+------------------+
| 0.0| 0.0|
|0.7853981633974...|0.9999999999999...|
|0.5235987755982...|0.5773502691896...|
+------------------+------------------+
Python
from pyspark.sql import functions as dbf
spark.sql(
"SELECT * FROM VALUES (FLOAT('NAN')), (NULL) AS TAB(value)"
).select("*", dbf.tan("value")).show()
Output
+-----+----------+
|value|TAN(value)|
+-----+----------+
| NaN| NaN|
| NULL| NULL|
+-----+----------+