Cascales, The quantitative difference between count- able compactness and compactness, J. Math. Anal. Appl. (2008), doi:10.1016/j.jmaa.2008.01.051, (2008).C. Angosto and B. Cascales. The quantitative difference
You can display the entries in the columns with COUNTA() and then read out the value with Index. Then simply subtract one from the index, then you have the last value minus the second to last value. But you shouldn't have any empty cells in between. Does that fit? See also the atta...