The lu() function in MATLAB calculates the upper triangular matrix (UTM) resulting from Gaussian elimination. Use this function to calculate the UTM for the matrix below (where j is the imaginary unit) and present a screenshot of the MATLAB output window with the solution. 1-j 1 2 -j 1-j 0 2+j 2 Perform the same calculation by hand such that you achieve exactly the same solution as given by MATLAB. Show all calculation steps and give explanatory notes where appropriate. Hint: In order to achieve an identical result to MATLAB you will need to take an algorithmic approach, i.e. a process that repeats the same simple operation

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