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原来老外也有同样的疑问：
A sample image where the magnification exceeded the accuracy of the floating point calculations, and floating point errors caused the plot to be distorted.
This is a julia set plot with a starting point of -0.7410794759994537, 0.1578721598171965i. The plot is centered on 0,0, with a width (real) of about 0.00000025 (2.5e-7). I'm not sure why Julia set plots start having floating point errors at much lower magnification than Mandelbrot plots.
J集的放大要比M集提早进入混沌，之前我一直不解在J集的放大中还没达到几何画板的放大极限时就出现了混沌现象。这是为什么呢？
这张图是C为（-0.7410794759994537，0.1578721598171965），放大倍数为2.5*10^7. |
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