Description: Button "first question": an array of data and calculating the diagonal
Button "second question": find out the maximum number of rows and columns where the subscript and subscript
Button "third question": averaged per line, and the two-dimensional array by rows mean rearranging
Button "Fourth Question": the two-dimensional array sorted transpose
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File list (Check if you may need any files):
9_1\Design.frm
...\Design.vbp
...\Design.vbw
...\MSSCCPRJ.SCC
9_1