asin
Description
Computes the arc sine of the argument.
Syntax
DOUBLE asin(DOUBLE arg)
Parameters
arg
: You can specify only a numeric value. This function converts the numeric value into a DOUBLE value before it computes the arc sine of the value.
Return value
Returns a value of the DOUBLE data type.
Usage notes
If you specify a non-numeric value, this function returns NULL
.
Examples
mysql> select asin(1);
+--------------------+
| asin(1) |
+--------------------+
| 1.5707963267948966 |
+--------------------+
mysql> select asin(-0.5);
+---------------------+
| asin(-0.5) |
+---------------------+
| -0.5235987755982989 |
+---------------------+
mysql> select asin(0);
+---------+
| asin(0) |
+---------+
| 0 |
+---------+
mysql> select asin("");
+----------+
| asin('') |
+----------+
| NULL |
+----------+
keyword
ASIN