document.write("abee");

// sin curve
xStep = 0.2;
yScale = 10;
yOffset = 10;

for (x = 0; x < Math.PI * 2; x += xStep) {
  y = Math.sin (x);
  for (i = 0 ; i < y * yScale + yOffset; i++)
    show (" ");
  show ("*\n");
};