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cooooldog

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

ส็็็

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²âÊÔÒ»ÏÂMathematicaµÄЧÂÊ:
CODE:
ClearAll["Global`*"];
t0 = AbsoluteTime[];
list = {{0, 0}};
last = {{0}, {0}};
GetNextPoint[pt_] := Module[{r,
   t1 = {{0.83, 0.03}, {-0.03, 0.86}}, p1 = {0, 1.5},
   t2 = {{0.2, -0.25}, {0.21, 0.23}}, p2 = {0, 1.5},
   t3 = {{-0.15, 0.27}, {0.25, 0.26}}, p3 = {0, 0.45},
   t4 = {{0, 0}, {0, 0.17}}, p4 = {0, 0}},
  r = Random[];
  If[r <= 0.85, t1.pt + p1,
   If[r <= 0.91, t2.pt + p2, If[r <= 0.99, t3.pt + p3, t4.pt + p4]]]]
For[i = 0, i < 100000, i++, last = GetNextPoint[last];
list = Append[list, First[Transpose[last]]];]
h = ListPlot[list, PlotStyle -> {PointSize[0.002], Red},
   Axes -> False];
range = First /@ Differences /@ (PlotRange /. Options[h]);
Show[h, AspectRatio -> Last@range/First@range]
Print[AbsoluteTime[] - t0]

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walk1997

½ð³æ (ÖøÃûдÊÖ)

¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
21.0682050
mshwangg µÄ»úÆ÷ÊÇAMDµÄcpu£¿
3Â¥2014-09-17 08:43:56
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mshwangg

ÖÁ×ðľ³æ (ÕýʽдÊÖ)

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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ÔËÐÐÕâ¶Î´úÂëµ½³öͼƬ,ÄãµÄµçÄÔÓÃÁ˶à¾Ã?
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2Â¥2014-09-15 23:08:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zzs510

Í­³æ (³õÈëÎÄ̳)


¡ï
Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
ClearAll["Global`*"];
t0 = AbsoluteTime[];
list = {{0, 0}};
last = {{0}, {0}};
GetNextPoint[pt_] := Module[{r,
   t1 = {{0.83, 0.03}, {-0.03, 0.86}}, p1 = {0, 1.5},
   t2 = {{0.2, -0.25}, {0.21, 0.23}}, p2 = {0, 1.5},
   t3 = {{-0.15, 0.27}, {0.25, 0.26}}, p3 = {0, 0.45},
   t4 = {{0, 0}, {0, 0.17}}, p4 = {0, 0}},
  r = Random[];
  If[r <= 0.85, t1.pt + p1,
   If[r <= 0.91, t2.pt + p2, If[r <= 0.99, t3.pt + p3, t4.pt + p4]]]]
For[i = 0, i < 100000, i++, last = GetNextPoint[last];
list = Append[list, First[Transpose[last]]];]
h = ListPlot[list, PlotStyle -> {PointSize[0.002], Red},
   Axes -> False];
range = First /@ Differences /@ (PlotRange /. Options[h]);
Show[h, AspectRatio -> Last@range/First@range]
Print[AbsoluteTime[] - t0]
4Â¥2014-09-17 10:31:04
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ò×ì¾

½ð³æ (Ö°Òµ×÷¼Ò)

matlabÐв»

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