Use ATAN : ATAN « Math « SQL / MySQL

1. SQL / MySQL
2. Math
3. ATAN

Use ATAN

/*
mysql> select ATAN( 0.45);
+------------------+
| ATAN( 0.45)      |
+------------------+
| 0.42285392613294 |
+------------------+
1 row in set (0.00 sec)


*/  
select ATAN( 0.45);

           
       

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