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PLSQL | TAN Function

Last Updated : 21 Oct, 2019
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The TAN function is an inbuilt function in PLSQL which is used to return the tangent of an input number. The tangent is a trigonometric function of an angle and here the input number is the angle expressed in the form of radians. 180 degree is equal to pi radian. Syntax:
TAN( number )
Parameters Used: This function accepts a parameters which are illustrated below: number - This is the input number which is an angle expressed in Radian. Return Value: This function returns a numeric value which is tangent of that input angle. Supported Versions of Oracle/PLSQL is given below:
  1. Oracle 12c
  2. Oracle 11g
  3. Oracle 10g
  4. Oracle 9i
  5. Oracle 8i
Let's see some examples which illustrate the TAN function: Example-1:
DECLARE 
   Test_Number number := 3;
   
BEGIN 
   dbms_output.put_line(TAN(Test_Number number)); 
   
END; 
Output:
-0.142546543074278
In the above example, tangent of 3 is -0.142546543074278 Example-2:
DECLARE 
   Test_Number number := 5.2;
   
BEGIN 
   dbms_output.put_line(TAN(Test_Number number)); 
   
END; 
Output:
-1.88564187751976
In the above example, the tangent of 5.2 is -1.88564187751976 Example-3:
DECLARE 
   Test_Number number := -5.2;
   
BEGIN 
   dbms_output.put_line(TAN(Test_Number number)); 
   
END; 
Output:
1.88564187751976
In the above example, the tangent of -5.2 is 1.88564187751976 Advantage: This function is used to calculate the tangent of a input number.

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