Table column widths

Given an array of integers representing the widths of table columns, here is a formula that decides in-place whether a column is considered significantly larger than the others. I use this to decide whether a column should be scaled down to allow the table to fit a maximum width.

T := Sum(array)
L := Length(array)
i := array[index]

big := i/T > (1 - i/T) / (L-1)

It basically compares the proportion of the current column with the average proportion of the rest of the table.

Better formula:

i/T     > (1 - i/T)       / (L-1)
i/T * T > (1 - i/T) * T   / (L-1)
i/T     > (1*T - i/T * T) / (L-1)
i       > (T - i)         / (L-1)

Now I have a decent-looking but crudely-implemented way to render tables in the terminal.