====== Sqr ======

The **Sqr** function returns the square root ($\sqrt{x}$) of a numeric value. It is essential for distance calculations, sensor data normalization, and power computations.

For the best precision, use the ''Single'' data type. **Note:** Input must be a **non-negative** number; negative values will cause a runtime error.

Example
<code xbasic>
Dim A As Single
Dim B As Single
B = 25.0
A = Sqr(B)      ' Returns 5.0
</code>

==== Explanation: ====
  * **B**: A non-negative number.
  * **Sqr B**: Calculates the square root.
  * **A**: Stores the result.

**Usage Tip (Distance):**
To find the distance between two points $(x1, y1)$ and $(x2, y2)$:
''Distance = Sqr((x2-x1)^2 + (y2-y1)^2)''

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