To perform matrix calculations using functions like MMULT and TRANSPOSE in Excel, follow these steps:
Enter the matrices into separate ranges in Excel. For example, enter Matrix A in range A1:C3 and Matrix B in range E1:G2.
To calculate the product of two matrices (MMULT), select a range where you want the result to appear. For example, select range I1:K3.
In the formula bar, type "=MMULT(A1:C3, E1:G2)" and press Enter. This formula multiplies Matrix A by Matrix B and displays the result in the selected range.
To perform a transpose on a matrix, select a range where you want the transposed matrix to appear. For example, select range M1:O3.
In the formula bar, type "=TRANSPOSE(A1:C3)" and press Enter. This formula transposes Matrix A and displays the result in the selected range.
Note: The number of columns in the first matrix must match the number of rows in the second matrix for MMULT to work properly. The TRANSPOSE function does not require a second argument.
By using these functions, you can perform various matrix calculations in Excel.