Hello,

Thank you for your answer. What the shape of ORDs02 is really similar to
is a Julia set of -0.75+0i, it can be seen if real(p5) is raised, for example,
to 20 or more. The first parameter below corresponds to the shape you have
shown and I have included two more similar parameters, to show (in some sense)
how these are possible.

If z = c = pixel:
ORDs04 is z = z*z +(c^2 +c) *3.5
ORDs05 is z = z*z +(c^2 +c) *-1
ORDs06 is z = z*z +(c^2 +c) *3

What really interests me with this formula is that when you find some
parameters for p3 and start incrementing real(p5) from 1 to all the way up.

Have a nice day
B.D.

---parameters-start----------------------------------------
ORDs04 {
  reset=2099 type=formula formulaname=ORDs
  center-mag=-0.5/0/1.4/0.75/0 params=0/0/0/0/1/0/3.5/0/1/0 float=y
  maxiter=200 inside=0 periodicity=0 }
ORDs05 { ; p3 = -1+0i Mandellambda
  reset=2099 type=formula formulaname=ORDs
  center-mag=-0.5/0/0.75/0.75/0 params=0/0/0/0/1/0/-1/0/1/0 float=y
  maxiter=200 inside=0 periodicity=0 }
ORDs06 { ; p3 = 3+0i
  reset=2099 type=formula formulaname=ORDs
  center-mag=-0.5/0/1.3/0.75/0 params=0/0/0/0/1/0/3/0/1/0 float=y
  maxiter=200 inside=0 periodicity=0 }

frm:ORDs {
  c = z0 = pixel, z = 0, c_param = p3, z_param = p4
  level_n = 0, level = real(p5) ; integer > 0
  bailout = 100
  :

  IF (level_n >= 0)
    z0 = z0*z0 +c *c_param
    level_n = level_n +1
    c = z0
    IF (level_n == level)
      level_n = -1
      z0 = c *z_param
    ENDIF
  ELSE
    z = z*z +z0
  ENDIF

  |z| <= bailout
}
---parameters-end------------------------------------------