Excel

## How do you use MMULT in Excel?

I use the MMULT function in Excel to multiply two matrices together. The function takes two arrays as input and returns the product of the arrays. The arrays can be of different sizes, but the function will only return the first n*n elements of the product.

## What is the syntax of MMULT in Excel?

The syntax of MMULT in Excel is as follows:

=MMULT(array1,array2)

This function multiplies the arrays array1 and array2 and returns the result.

## What is an example of how to use MMULT in Excel?

The MMULT function in Excel multiplies arrays of numbers. An example of how to use it is to multiply the cells in two columns together. For example, the cells in column A and column B can be multiplied together by entering the following formula in cell C2:

=MMULT(A2:A10,B2:B10)

This will result in the product of the numbers in A2 and B2, A3 and B3, A4 and B4, and so on.

## When should you not use MMULT in Excel?

There are a few occasions when you should not use the MMULT function in Excel. One such time is when you are trying to calculate the inverse of a matrix. In this case, you should use the INV function. Additionally, you should not use MMULT when you are trying to calculate the determinant or the inverse of a matrix.

## What are some similar formulae to MMULT in Excel?

The MMULT function in Excel is used to multiply two matrices together. The similar formulae are as follows:

1. The PRODUCT function in Excel is used to multiply two arrays together.

2. The TRANSPOSE function in Excel is used to transpose an array.

3. The AVERAGE function in Excel is used to calculate the average of a set of values.

4. The SUM function in Excel is used to sum up a set of values.

### Excel

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