Class Point Object xp yp
Methods Point 'all'
  x: xcoord y: ycoord
    xp <- xcoord.
    yp <- ycoord
|
  rho: dist theta: angle
    xp <- dist * angle cos.
    yp <- dist * angle sin
|
  x
    ^ xp
|
  rho
    ^ (xp squared + yp squared) sqrt
]