This fractal mixes tangent and z^2. The area around the minibrot has some interesting shapes. Here is a link to an image: http://dl.dropboxusercontent.com/u/33642054/image/tangent_void_800_5.jpg The FractInt compatible PAR file for the image is: Tangent_Void { ; Exported from Fracton. reset=2004 type=formula formulafile=fracton.frm formulaname=F_20150907_1030 passes=1 float=y center-mag=4.140284923502022/0/14653.60246442613/1\ /0/0 params=1/-1/2/2/-1/0/1/0/0/0 maxiter=2000 inside=0 periodicity=6 colors=0000Tv0Rr0Pn0Nj1Mf1Kb1IZ1GV2FS2DO2BK29G38C3\ 6834442054376788BAAFBCIDFMEHQGJUHLXJN`KQdMShNUkPWo\ QYsS`wRZtPXpOVmMTiLReJPbINZGKVFISDGOCELACH9AD78A66\ 64324554894BC5DG5GK5JN6LR6OV6RY7Ta7Wd7Zh8`l8co8fs9\ iw9gt8dp8al7Zh7We6Ta6QY5NU4LR4IN3FJ3CF29C268134000\ 22344776B98FCAIECMHEQJGULIXOK`QMdTOhVQkYSo_UsbXwbY\ u`WqYUmWSiUQeROaPMYMJUKHQIFMFDIDBEA9A8766522202332\ 5727B28F2AI2CM2DQ1FU1HX1I`1Kd1Mh1Nk1Po1Rs000O40hI0\ ua0zy0ua0hI0O40000O40hI0ua0zy0ua0hI0O40000O40hI0ua\ 0zy0ua0hI0O40000O40hI0ua0zy0ua0hI0O40000O40hI0ua0z\ y0ua0hI0O40000O40hI0ua0zy0ua0hI0O40000O40hI0ua0zy0\ ua0hI0O40000O40hI0ua0zy0ua0hI0O40000O40hI0ua0zy0ua\ 0hI0O40000O40hI0ua0zy0ua0hI0O40000O40hI0ua0zy0ua0h\ I0O40000O40hI0ua0zy0ua0hI0O40000O40hI0ua0zy0ua0hI0\ O40000O40hI0ua0zy0ua0hI0O40000O40hI0ua0zy0ua0hI0O4\ 0000O40hI0ua0zy0ua0hI0O40 } frm:F_20150907_1030 { ; Similar to the parallel resistance formula a=real(p1),b=real(p2)-1,d=imag(p1),f=imag(p2), z=0,c1=pixel-p3,c2=pixel-p4: z=1/(1/(a*(z^b)*tan(z)+c1)+1/(d*(z^f)+c2)), |z|<100 } -- Mike Frazier www.fracton.org