Now I need 5 formula for sum of each column, it works fine but I wish it can be simplified to one formula. Is it possible?
|----+----+----+-----+----|
| a | b | c | d | e |
|----+----+----+-----+----|
| 1 | 2 | 3 | 4 | 5 |
| 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 | 19 | 20 |
|----+----+----+-----+----|
| 34 | 38 | 42 | 160 | 50 |
|----+----+----+-----+----|
#+TBLFM: @>$5=vsum(@2$5..@-1$5)::@>$4=vsum(@2$1..@-1$4)::@>$3=vsum(@2$3..@-1$3)::@>$2=vsum(@2$2..@-1$2)::@>$1=vsum(@2$1..@-1$1)