Oracle PL/SQL/Numeric Math Functions/COS

COS(1415926)

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SQL> select COS(45 * 3.1415926) from dual; COS(45*3.1415926)

---

              -1

SQL>

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COS() function returns the cosine of the <numeric expression> argument that is passed to it.

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SQL> Syntax: COS(<numeric expression>) SQL> SQL> SQL> SELECT COS(2) from dual;

   COS(2)

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-.41614684 SQL> SQL>

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COS: Returns the cosine of a value

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SQL> SQL> -- create demo table SQL> create table TestTable(

 2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
 3    MyName             VARCHAR2(10 BYTE),
 4    MyDate             DATE,
 5    MyNumber           Number(8,2)
 6  )
 7  /

Table created. SQL> SQL> SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("19960711","YYYYMMDD"),12.12); 1 row created. SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("19970622","YYYYMMDD"),-12.12); 1 row created. SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("19980513","YYYYMMDD"),22.1); 1 row created. SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("19990624","YYYYMMDD"),-2.12); 1 row created. SQL> insert into TestTable (ID, MyName, MyDate, MyNumber) values("1","Alison",to_date("20000415","YYYYMMDD"),2.1); 1 row created. SQL> SQL> SQL> select * from TestTable

 2

SQL> -- COS: Returns the cosine of a value SQL> SQL> SELECT COS(MyNumber*2*3.1416/360) FROM TestTable; COS(MYNUMBER*2*3.1416/360)

---

               .977709903
               .977709903
               .926528292
               .999315539
               .999328391

SQL> SQL> drop table TestTable; Table dropped. SQL> SQL>

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COS(x): Returns the cosine of x, where x is an angle in radians

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SQL> SQL> --COS(x): Returns the cosine of x, where x is an angle in radians. SQL> SQL> select COS(90 * 3.1415926) from dual; COS(90*3.1415926)

---

               1

SQL>

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