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**SQRT(**//expression//**)**

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| **SQRT** | Returns square root. |
| //expression// | A numeric constant, variable, or expression. If the value of the expression is less than zero, the return value is zero. |

The **SQRT** procedure returns the square root of the //expression//. If X represents any positive real number, the square root of X is a number that, when multiplied by itself, produces a product equal to X.

**Return Data Type:     **REAL

**Example:**
<code>
 Length = SQRT(X^2 + Y^2) !Find the distance from 0,0 to x,y (pythagorean theorem)
</code>