Oracle PL/SQL/Numeric Math Functions/ACOS

ACOS(1)

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SQL> --ACOS(x): Returns the arccosine of x. SQL> SQL> select ACOS(1) from dual;

  ACOS(1)

---

        0

SQL>

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ACOS(x): Returns the arccosine of x

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SQL> SQL> --ACOS(x): Returns the arccosine of x. SQL> SQL> select ACOS(-1) from dual;

 ACOS(-1)

---

3.14159265 SQL>

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The ACOS() function is used to return the arccosine of the <numeric expression> passed to it.

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Syntax: ACOS(<numeric expression>)

SQL> SQL> SELECT ACOS(.5) from dual;

 ACOS(.5)

---

1.04719755

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