关于matlab求解的程序

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已知有两组n个点的坐标，分别将两组相邻点做线段，求这两组n-1条线段相交点的坐标，希望大神给我编个程序

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关键词：MATLAB matla atlab Lab Atl matlab 程序

这也太难了吧？
首先得考虑横坐标是不是等长，是不是重合的
其次还有纵坐标……

这么通用的程序怎么可能编完？
没有数据的特性可以简化编程么

Benlaron 发表于 2014-5-21 10:31
这也太难了吧？
首先得考虑横坐标是不是等长，是不是重合的
其次还有纵坐标……

xx=Data1(:,1);
yy=Data1(:,2);
for i=1:(size(xx)-1)
    xx1=[xx(i),xx(i+1)];
    yy1=[yy(i),yy(i+1)];
result=polyfit(xx1,yy1,1);
a(i)=result(1);
b(i)=result(2);
% syms x y;
% y=a*x+b
end
我写了一个程序 可以算出n-1条方程   但是两个n-1条方程   分别对应的位置的两个线段的交点  我还在想

殇诚 发表于 2014-5-21 12:36
xx=Data1(:,1);
yy=Data1(:,2);
for i=1:(size(xx)-1)

就是分别求对应的n-1条线段对应的解   有的话就表示出来  没有的话就显示错误

殇诚 发表于 2014-5-21 12:37
就是分别求对应的n-1条线段对应的解   有的话就表示出来  没有的话就显示错误

还有种想法就是，比如第一个点的坐标的表示为，a1>b1 然后比较ai,bi  一旦在某处ai<bi则出现交点  然后循环下去   就可求得所有的交点位置   对于程序的话  我还在想  如果你能编的出来  帮我一下  呵呵

我想说的是，比如说xx的第一个步长很大，而yy的第二个步长很小，有可能一条线段会交多个点
所以区间的划分我觉得有必要事先考察一下

那个我已经解决了 你能帮我把0
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中两个1之间0的个数计算出来吗 ？谢谢