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SQRT

Returns the square root of a given number, accurate to within the representation of doubles.

SQRT ( number )

Arguments

Return Type

Float or double. If number is is zero, returns 0. If less than 0, returns NULL.

Examples

memsql> select sqrt(-2);
+----------+
| sqrt(-2) |
+----------+
|     NULL |
+----------+

memsql> select sqrt(2);
+--------------------+
| sqrt(2)            |
+--------------------+
| 1.4142135623730951 |
+--------------------+

memsql> select sqrt(4);
+---------+
| sqrt(4) |
+---------+
|       2 |
+---------+
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