I used org-mode tables to tabulate student grades for a course I was teaching last semester. Summing single columns was okay. But I needed to drop selected assi

I used org-mode tables to tabulate student grades for a course I was teaching last semester. Summing single columns was okay. But I needed to drop selected assignments (had a column with 1s and 0s). And then had to figure out the percentage marks each student had in the assignment component. It was honestly a huge pain. I could have written the formulas for this in under 15 min on a regular spreadsheet software. With org-mode I spent hours trying to figure it out. In the end I had a hacky solution that I don't want to use again.