$ include "seed7_05.s7i";
  include "float.s7i";

const func float: mapRange (in float: a1, in float: a2, in float: b1, in float: b2, ref float: s) is
    return b1 + (s-a1)*(b2-b1)/(a2-a1);

const proc: main is func
  local
    var integer: number is 0;
  begin
    writeln("Mapping [0,10] to [-1,0] at intervals of 1:");
    for number range 0 to 10 do
      writeln("f(" <& number <& ") = " <& mapRange(0.0, 10.0, -1.0, 0.0, flt(number)) digits 1);
    end for;
  end func;