How to Use SUMSQ in Excel

SUMSQ in Excel is a built-in function used to find the sum of the squares of the given numbers. This function helps reduce computational errors and is useful in statistical calculations, such as variance and standard deviation.

Here's how to use the SUMSQ function in Excel:

1. Open Microsoft Excel and create a new worksheet or open an existing one.
2. Enter the numbers you want to find the sum of squares for in separate cells. For instance, you could enter the numbers in cells A1, A2, A3, and A4.
3. Click on an empty cell where you want to display the result. Let's say you want to display the result in cell B1.
4. In cell B1, enter the formula =SUMSQ( followed by the cell references of the numbers you want to find the sum of squares for, separated by commas. For our example, the formula would be =SUMSQ(A1,A2,A3,A4).
5. Press Enter. The sum of the squares of the numbers you entered will be displayed in the cell B1.

Example

Let's say you have the following numbers in cells A1, A2, A3, and A4:

A1: 2
A2: 4
A3: 6
A4: 8

To find the sum of the squares of these numbers, follow these steps:

1. Click on an empty cell, such as B1.
2. Enter the formula =SUMSQ(A1,A2,A3,A4) in cell B1.
3. Press Enter.

The sum of the squares of the numbers in cells A1, A2, A3, and A4 will be displayed in cell B1, which is 120 in this case, because (2^2) + (4^2) + (6^2) + (8^2) = 4 + 16 + 36 + 64 = 120.