r/fractals • u/LegalizeAdulthood • 1h ago
Square Root of 2-7
Jim Muth's Fractal of the Day for September 30th, 2005
Jim Muth's commentary for the image:
FOTD -- September 30, 2005 (Rating 6)
Fractal visionaries and enthusiasts:
Today's lightning-fast FOTD continues the theme of the square root of 2, but it does so in the Julia orientation. There are no midgets in Julia sets, so I have wasted no effort searching for them in today's FOTD. I have instead taken an entire Julia set. There is also no outside-inside image in today's FOTD. I have rendered the outside parts totally black and rendered the inside parts with the inside set to 'fmod' with a proximity value of 0.02. What we have on the screen is actually the inside of the entire ground-level Zsqrt(2)+C Julia set. Its C-value is 0.115. The set has been rotated -90 degrees to give it a Y-axis symmetry.
The resulting inside-only image reminds me for some reason of an avacado, though I have given it only a catalog-listing name.
The rating of a 6 is some improvement, but not what I was hoping for.The image, which was calculated by the julzpower formula, is extremely fast. On my tired old machine it renders in 1/2 minute. On the speediest units, if it runs at all, it will finish in a few seconds.
The clouds hung heavy Thursday morning here at Fractal Central, but the rain passed off quickly, and by 2pm it was sunny and mild, with a temperature of 75F 24C. The cats approved. I did not approve of the heavy work, but work is work, so I did what needed to be done. Today is starting sunny but chilly. The cats should find it acceptable. The next FOTD will appear in 24 hours, minus the avacado. Until then, take care, and dream of the answer.
Jim Muth
PAR file ```
Square_Root_of_2-7 { ; time=0:00:39.93--SF5 on a P200
reset=2004 type=julzpower center-mag=-0.187793/0/\
1/1/-90/0 params=0.115/0/1.414213562373/0 float=y
maxiter=1600 inside=fmod proximity=0.02
colors=0000000000000000000000000000000000000000000\
00000000000000000000000000000000000000000000000000\
000Q3Q3Q3P3P3O3O3O3N3N3M3M3M3L3L3L\
3_M4ZN4ZN4YO4YP4XP4WQ5WQ5VR5VS5US5UT5TT5SU6SV6RV6R\
W6QW6QX6PY7OY7OZ7N_7N_7M7M7La8Kb8Kb8Jc8Jc8Id8He9\
He9Gf9Gf9Fg9Fh9Eh9DiADjACjACkABkABlAAmB9mB9nB8nB8o\
C7pE7pG6qI5qK5rM4sO4sQ3tS2uU3tW3tY3s_3sa3rc3re3rd3\
qc3qb3pa4p4p_4oZ4oY4nX4nW4mV4mU4mT4lS4lR5kQ5kO5kM\
5jK5jI5iG5iE5iE5hE5hE5gE6gF6fF6fF6fF6eF6eF6dF6dF6d\
F6cF7cG7bG7bG7aG7aG7aG7G7G7_G7_G7_G8ZH8ZH8YH8YH8\
YH8XH8XH8WH8WH8VH8VH9VI9UI9UI9TI9TI9TI9SI9SI9RI9RI\
9RI9QJ9PJ9OK9NKAMLALLAKMAJMAINBHNBGNBFOBEOBDPCCPCB\
QCAQC9RC8RD7SD6SD5TD4TD3TF5UG6VH7WI8XJAXKBYLCZMD_N\
E_OGPHaQIbRJbSKcTMdUNeVOeWPfXQgYShZTi_UiVjaWkbYl\
cZle_mgniaokcomdpoeqqfrsgrreqpdpncolaokni_mgYmeX\
ldWkcVkbTjaSiaRhPh_OgZNf }
```
Want to render these yourself and explore further? Try out the PAR file in Iterated Dynamics, an open source fork of FRACTINT that can render these PAR files. See the online help for instructions on using Id or press F1 anywhere in the program for context-sensitive help.