On Saturday 27 January 2007 13:09, Maryetta Campbell wrote:

Hal Lane wrote:

...

David, Please include your pars and frms in the body of your text like Jim Muth does. Your pars and frms are not making it as attachments...

they came thru when i got davids email posting, and they i enjoyed seeing the images.

he has some type of email setting that doesn't allow attachments. i did a copy paste job and the file is here; it is very pretty :) sammi sf7f0002 { ; (c)David M Fisher ; Fractint Version 2004 Patchlevel 3 reset=2004 type=formula formulafile=fractint.frm formulaname=CGNewton3 passes=1 center-mag=1.33227e-015/-1.33227e-015/0.2346667 params=1.964956195244055/0.1878130217028381 float=y maxiter=300 inside=zmag colors=000fR0<3>nT0pT0rU0<2>xV0zW0zX0<24>zt0zu0zv0<2>zy0zz0zy1<24>zaQz`R\ z_S<2>zXVzWWxVV<22>G88E77C66<2>633422000<25>0Qb0Rc0Se<2>0Vi0Wk0Xk<24>0tw\ 0ux0vx<2>0yz0zz0yy<27>0ZZ0YY0XX<26>0J60I50I4<2>0G10G02G0<19>dQ0 } frm:CGNewton3 {; Chris Green -- A variation on newton iteration. ; The initial guess is fixed at (1,1), but the equation solved ; is different at each pixel ( x^3-pixel=0 is solved). ; Use floatitng point. ; Try P1=1.8 z=(1,1): z2=z*z z3=z*z2 z=z-p1*(z3-pixel)/(3.0*z2) 0.0001 < |z3-pixel| }