*I improved my definition of a complex number using the complete variable value for the real part and only the second digit for the imaginary part: ; If (1<sp) d=(trunc(sp/10))/9 da=sp-100*d d=sp/99 sp=d+sqr(-da) else sp=p1 endif ; Now it IS capable of a fractal calculation, but the result is not really satisfactory as it still lacks versatility, the elements remain the same on zooming, but the lambda typical strings turn up. ; https://www.dropbox.com/s/i09knpa4oq6iqj1/68_LAMBD-24.GIF?dl=0 ; I still hope to get a reply on how to improve complexity. I know it?s possible, it is with other frms not using p1. ; The Images_Mfr folder now also contains an MFR13 version of the Input table and the latest version. Check the date. ; https://www.dropbox.com/sh/65mmzl5h3bbhh8d/AAAA8pd7WEXy5Hws4b5Cx4S4a?dl=0 ; Petta *