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ajian04(½ð±Ò+1):лл½»Á÷~ 2010-11-05 17:43:37
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2Â¥2010-11-05 13:21:15
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- ×¢²á: 2010-10-05
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nono2009:½¨ÒéͨʹÓá°ÒýÓûظ´¸ÃÌû¡±£¬²»È»±ðÈËÊÕ²»µ½ÄãµÄ»Ø¸´Ìáʾ¡£ 2010-11-08 12:44:39
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h[x]ÊÇѦ¶¨ÚÌ·½³ÌµÄ²¨º¯Êý£¨²»ÖªµÀ¾ßÌåÐÎʽ£©£¬x±íʾÄÜÁ¿£¬ÏÂÃæÊÇÎÒ±àµÄÕÒ³öh[x]==0µÄ½âµÄ¶þ·Ö·¨³ÌÐò£¬v1¡¢v2ÊÇÒÑÖªµÄÊÆÄÜ£»µ«Èç¹û´Ë²¨º¯ÊýÊÇÀàËÆ·´º¯ÊýµÄÇé¿ö£¬Ò²Âú×ãh[p1]*h[p3]<0£¬µ«ËüÓëxÖáû½»µã£¬Ò²¾ÍÊÇ˵²¢Ã»Óн⣬ÄÇÔõôÓóÌÐòÅųýÕâÖÖÇé¿ö£¡£¡Ð»Ð» total = 1000; y1 = v1;y2 = v2; y0 = (y2 - y1)/total; rt[x_, y_] := Module[{p1 = x, p2 = y, p3 = (x + y)/2}, While[Abs[p1 - p2] > 0.0001, If[h[p1]*h[p2] == 0, If[h[p1] == 0, p3 = p1, p3 = p2]; Break[]]; If[Negative[h[p1]*h[p3]], p2 = p3; p3 = (p1 + p2)/2, p1 = p3; p3 = (p1 + p2)/2]]; p3]; last = Table[ If[h[y1 + w*y0]*h[y1 + (w + 1) y0] < 0, rt[y1 + w*y0, y1 + (w + 1) y0], 0], {w, 1, total - 2}]; sz = Module[{i = 0}, Do[If[Part[last, j] != 0, i = i + 1, i], {j, 1, Length[last]}]; i]; netlast = Table[0, {i, 1, sz}]; Module[{j = 1}, Do[If[Part[last, i] != 0, Part[netlast, j] = Part[last, i]; j = j + 1], {i, 1, Length[last]}]]; netlast |
3Â¥2010-11-08 11:16:20
wbjhpp
½ð³æ (³õÈëÎÄ̳)
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h[x]ÊÇѦ¶¨ÚÌ·½³ÌµÄ²¨º¯Êý£¨²»ÖªµÀ¾ßÌåÐÎʽ£©£¬x±íʾÄÜÁ¿£¬ÏÂÃæÊÇÎÒ±àµÄÕÒ³öh[x]==0µÄ½âµÄ¶þ·Ö·¨³ÌÐò£¬v1¡¢v2ÊÇÒÑÖªµÄÊÆÄÜ£»µ«Èç¹û´Ë²¨º¯ÊýÊÇÀàËÆ·´º¯ÊýµÄÇé¿ö£¬Ò²Âú×ãh[p1]*h[p3]<0£¬µ«ËüÓëxÖáû½»µã£¬Ò²¾ÍÊÇ˵²¢Ã»Óн⣬ÄÇÔõôÓóÌÐòÅųýÕâÖÖÇé¿ö£¡£¡Ð»Ð» total = 1000; y1 = v1;y2 = v2; y0 = (y2 - y1)/total; rt[x_, y_] := Module[{p1 = x, p2 = y, p3 = (x + y)/2}, While[Abs[p1 - p2] > 0.0001, If[h[p1]*h[p2] == 0, If[h[p1] == 0, p3 = p1, p3 = p2]; Break[]]; If[Negative[h[p1]*h[p3]], p2 = p3; p3 = (p1 + p2)/2, p1 = p3; p3 = (p1 + p2)/2]]; p3]; last = Table[ If[h[y1 + w*y0]*h[y1 + (w + 1) y0] < 0, rt[y1 + w*y0, y1 + (w + 1) y0], 0], {w, 1, total - 2}]; sz = Module[{i = 0}, Do[If[Part[last, j] != 0, i = i + 1, i], {j, 1, Length[last]}]; i]; netlast = Table[0, {i, 1, sz}]; Module[{j = 1}, Do[If[Part[last, i] != 0, Part[netlast, j] = Part[last, i]; j = j + 1], {i, 1, Length[last]}]]; netlast |
4Â¥2010-11-09 08:44:58













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