Here follows a rough guide to some of the patterns in Show:

  + Formula: x=y
    Pattern: Spiral
  + Formula: x=2y
    Pattern: Arches
  + Formula: y=2x
    Pattern: Hourglass
  + Formula: 2x=3y
    Pattern: Double Heart
  + Formula: 2y=5x
    Pattern: Swirly Double Tunnel
  + Formula: x=3y
    Pattern: Triple Tunnel
  + Formula: y=80 x=90
    Pattern: Infinite UFOs
  + Formula: 4y=3x
    Pattern: Overlapping Heart
  + Formula: x=6y
    Pattern: Wavy