A gif and its resampled jpg in the same post. I should do this more often. Today's fractal is a self similar spiral(is there any other kind?). The hypnotizing pull of the rotating spiral - a staple of shlock cinema. While Fractint can't rotate the spiral it can color cycle which I especially like on the plasma type. fract341.gif { ; fire spiral ; blank ; calctime 0:02:08.15 ; created Jul 31, 2010 ; Fractint Version 2004 Patchlevel 9 reset=2004 type=formula formulafile=magnet.frm formulaname=magnet_cplxspirals center-mag=-4.34229156556823700/+0.04267698775271542/162.3188/1/-22.4999\ 999999958078/-2.82394940764874036e-012 float=y maxiter=1500 inside=0 logmap=18 periodicity=0 cyclerange=0/255 colors=000000000000000000000000000000000100100200400500700900B00D00G00I0\ 0L00O10Q10T10W10Z10a10e10h20k20o20r20v20y20z30z50z60z80z90zB0zC0zE0zF0zH\ 0zI0zK0zL0zN0zO0zQ0zR0zT0zU0zW0zX0zZ0z_0za0zb0zd0ze0zg0zh0zj0zk0zm0zn0zp\ 0zq0zs0zt0zv0zw0zy0zz1zz3zz4zz6zz7zz7zy7zx7zx7zw7zv7zv7zu7yt7ys7ys7yr7yq\ 6yq6yp6yo6yo6xn6xm6xl6xl6xk6xj6xj6xi5xh5wh5wg5wf5we5we5wd5wc5wc5vb5va5va\ 5v`4v_4vZ4vZ4vY4vX4uX4uW4uV4uV4uU4uT4uS3uS3uR3tQ3tQ3tP3tO3tO3tN3tM3tL3sL\ 3sK3sJ2sJ2sI2sH2sH2sG2sF2rE2rE2rD2rC2rC2rB1rA1rA1r91q81q71q71q61q51q51q4\ 1q31p20p20o20n20m20m20l20k20j20j20i20h20g20g20f20e20d20d20c20b20a20a20`2\ 0_20Z20Z20Y20X20W20W20V20U20T20T20S20R20Q20Q20P20O20N20N20M20L20K20K20J2\ 0I20H20H20G20F20E20E20E20D20D20C20C20C20B20B20A20A20A2092092092082082072\ 0720720620620520520520420420420320320220220220120120010 } frm:magnet_cplxspirals (XAXIS) { ;at the left end! ;needs floating point! z=c=pixel: z=( (z*z+(c-1)) / (c/z+(c-2)) )^2-2 |z|<100 } Roger Alexander