<story><title>One-Hour Mandelbrot: Creating a Fractal on the Vintage Xerox Alto</title><url>http://www.righto.com/2017/06/one-hour-mandelbrot-creating-fractal-on.html</url></story><parent_chain><item><author>forinti</author><text>The first Mandelbrot generator I played with took more than 3 hours on a BBC Micro to render a 160x256 image. That was 30 years ago and I still try out variations on this from time to time (larger exponents, fractional exponents, complex exponents, animations, etc).&lt;p&gt;&lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;alquerubim.blogspot.com.br&amp;#x2F;search&amp;#x2F;label&amp;#x2F;Fractais&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;alquerubim.blogspot.com.br&amp;#x2F;search&amp;#x2F;label&amp;#x2F;Fractais&lt;/a&gt;</text></item></parent_chain><comment><author>DanBC</author><text>This used to be a rite of passage for programmers of the time.&lt;p&gt;One example would be the advice given by Scientific American&amp;#x27;s A.K. Dedney&amp;#x27;s &amp;quot;Computer Diversions&amp;quot;  Here&amp;#x27;s a 2010 reprint of a 1985 article: &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;www.scientificamerican.com&amp;#x2F;article&amp;#x2F;mandelbrot-set&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;www.scientificamerican.com&amp;#x2F;article&amp;#x2F;mandelbrot-set&amp;#x2F;&lt;/a&gt;&lt;p&gt;And &amp;quot;Fractint&amp;quot; (a fast viewer for many fractal types) was my introduction to open source, although they called it &amp;quot;stone soup&amp;quot;. &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Fractint&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;en.wikipedia.org&amp;#x2F;wiki&amp;#x2F;Fractint&lt;/a&gt;</text></comment>
<story><title>One-Hour Mandelbrot: Creating a Fractal on the Vintage Xerox Alto</title><url>http://www.righto.com/2017/06/one-hour-mandelbrot-creating-fractal-on.html</url></story><parent_chain><item><author>forinti</author><text>The first Mandelbrot generator I played with took more than 3 hours on a BBC Micro to render a 160x256 image. That was 30 years ago and I still try out variations on this from time to time (larger exponents, fractional exponents, complex exponents, animations, etc).&lt;p&gt;&lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;alquerubim.blogspot.com.br&amp;#x2F;search&amp;#x2F;label&amp;#x2F;Fractais&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;alquerubim.blogspot.com.br&amp;#x2F;search&amp;#x2F;label&amp;#x2F;Fractais&lt;/a&gt;</text></item></parent_chain><comment><author>Theodores</author><text>I was there too. Plus at the time Mandelbrot was new, as new as Deepdream images are today.&lt;p&gt;So the Alto must pre-date Mandelbrot sets and therefore this demo is non-canonical, like playing Tetris on it, not possible at the time or even imagined.</text></comment>