Excel SQRT Function
The SQRT function in Microsoft Excel calculates the square root of a number. It is commonly used in mathematical, scientific, and engineering calculations, such as finding distances or normalizing data.
Key Topics
Overview of SQRT Function
The SQRT function returns the positive square root of a non-negative number. It is useful for geometric calculations, statistical analysis, or any scenario requiring the square root of a value.
SQRT Function Syntax
The syntax for the SQRT function is as follows:
Syntax: =SQRT(number)
Parameters:
- number: The non-negative number to calculate the square root of (required).
Implementation Examples
Below are examples of how to use the SQRT function in different scenarios.
Example 1: =SQRT(B2) — Returns the square root of the value in B2.
Example 2: =SQRT(B2*C2) — Calculates the square root of the product of B2 and C2.
Example 3: =SQRT(ABS(B2)) — Ensures a non-negative input by using ABS with SQRT.
Sample Dataset (Excel-style View)
Below is a demo dataset styled like Excel, showing how the SQRT function can be used to calculate side lengths from areas.
| A | B | C | |
|---|---|---|---|
| 1 | Plot | Area (sq m) | Side Length (m) |
| 2 | Plot A | 25 | =SQRT(B2) |
| 3 | Plot B | 49 | =SQRT(B3) |
| 4 | Plot C | 100 | =SQRT(B4) |
| 5 | Plot D | 144 | =SQRT(B5) |
| 6 | Plot E | 64 | =SQRT(B6) |
Note: In the dataset, column C uses =SQRT(B2) to calculate the side length of a square plot from its area in column B. For example, cell C2 computes the square root for Plot A’s area.
Key Takeaways
- The SQRT function calculates the positive square root of a non-negative number.
- It requires a non-negative input, or an error (#NUM!) occurs.
- It can be combined with other functions, e.g.,
=SQRT(ABS(B2)). - Common uses include geometric calculations and statistical analysis.
- The sample dataset demonstrates SQRT applied to calculate side lengths from plot areas.