Instructions

Data can be given in variety of ways:

  1. Pairs of numbers, separated by semicolon or new line. Inside each pair use comma or space.
  2. Row of $x_i$ followed by a row of $y_i$. Use comma or space as separators.
  3. Just a row of $y_i$. Then $x_i=i$, starting with $i=1$. Use comma or space as separators.

Advanced input