Oracle PL/SQL Tutorial/Numerical Math Functions/ASIN
ASIN(1)
<source lang="sql">
SQL> select ASIN(1) from dual;
ASIN(1)
1.57079633</source>
ASIN(-1) (2)
<source lang="sql">
SQL> select ASIN(-1) from dual;
ASIN(-1)
-1.5707963</source>
<source lang="sql">
SQL> select ASIN(1) from dual;
ASIN(1)
1.57079633</source>
<source lang="sql">
SQL> select ASIN(-1) from dual;
ASIN(-1)
-1.5707963</source>