matlab矩阵维度不一样怎么办？ matlab报错矩阵维度不一致如何解决？
matlab \u4e32\u8054\u7684\u77e9\u9635\u7ef4\u5ea6\u4e0d\u4e00\u6837\u600e\u4e48\u529e\uff1f[0,m1*g,0,m2*g]'
\u4e0d\u8981\u8f6c\u7f6e\uff0c\u76f4\u63a5[0,m1*g,0,m2*g]\u5c31\u597d
matlab\u4e2d\u77e9\u9635\u7ef4\u6570\u4e0d\u4e00\u81f4\uff0c\u53ef\u80fd\u662f\u4e4b\u524d\u5b9a\u4e49\u4e86\u4e00\u4e2a\u77e9\u9635\uff0c\u540e\u6765\u53c8\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540c\u540d\u77e9\u9635\uff0c2\u4e2a\u77e9\u9635\u7ef4\u6570\u4e0d\u540c\uff0c\u6df7\u7528\u5728\u4e00\u8d77\u4e86\u3002
\u8fd8\u53ef\u80fd\u77e9\u9635\u672a\u5b9a\u4e49\u3002
MATLAB\u9519\u8bef\u8bb0\u5f55\uff1a\u9519\u8bef\u4f7f\u7528 cat \u4e32\u8054\u7684\u77e9\u9635\u7684\u7ef4\u5ea6\u4e0d\u4e00\u81f4
\u4eca\u5929\u60f3\u7528matlab\u8bfb\u53d6\u4e00\u4e2a\u6570\u636e\u6587\u4ef6\u3002\u7528importdata\u8bfb\u5165\u540e\u7167\u4f8b\u50a8\u5b58\u6210\u4e86cell\u7c7b\u578b\u3002\u4f46\u5f53\u6211\u60f3\u7528cell2mat\u5c06\u5176\u8f6c\u5316\u4e3a\u77e9\u9635\u65f6\u5374\u51fa\u73b0\u4e86\u8fd9\u4e2a\u95ee\u9898\uff1a
\u9519\u8bef\u4f7f\u7528 cat \u4e32\u8054\u7684\u77e9\u9635\u7684\u7ef4\u5ea6\u4e0d\u4e00\u81f4
\u7ecf\u68c0\u67e5\u540e\u53d1\u73b0\uff0ccell\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5143\u80de\u4e2d\u5b58\u50a8\u7684\u683c\u5f0f\u5e76\u975edouble\uff0c\u800c\u662fchar\u6570\u7ec4\u3002\u800c\u4e14\u6bcf\u4e00\u884cchar\u7684\u957f\u5ea6\u4e0d\u4e00\u81f4\uff0c\u4ece\u800c\u5f15\u53d1\u4e86\u8fd9\u4e2a\u9519\u8bef\u3002\u4e8e\u662f\u6211\u9996\u5148\u60f3\u5230\u7684\u89e3\u51b3\u601d\u8def\u662f\uff1a
\u7528char()\u51fd\u6570\u628a\u6bcf\u4e2a\u5143\u80de\u7684\u957f\u5ea6\u7edf\u4e00\u3002
\u4e5f\u786e\u5b9e\u7edf\u4e00\u4e86\u3002\u4f46\u968f\u540e\u5f53\u6211\u60f3\u7528str2num()\u5c06char\u6570\u7ec4\u8f6c\u6362\u4e3a\u6570\u5b57\u65f6\uff0c\u5374\u53c8\u51fa\u73b0\u4e86\u53e6\u4e00\u4e2a\u95ee\u9898\uff1a
y = str2num(x)\u8fd4\u56de\u503c\u4e3a\u7a7a\u503c[]
\u8fd9\u5f88\u5947\u602a\uff0c\u4e8e\u662f\u6211\u68c0\u67e5\u4e86\u4e00\u4e0b\u6211\u7684\u6bcf\u884c\u5b57\u7b26\u4e32\u6570\u7ec4\u3002\u53d1\u73b0\u5b83\u5b58\u5728\u7740\u53e4\u602a\u7684\u683c\u5f0f\u95ee\u9898\u3002\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5728\u539f\u59cb\u6587\u4ef6\u4e2d\u6570\u636e\u672c\u6765\u662f\u8fd9\u6837\u7684\uff1a0.00
\u4f46\u662f\u5bfc\u5165\u5230matlab\u91cc\u4ee5\u540e\u5c31\u53d8\u6210\u4e86\u4e86\u8fd9\u6837\uff1a0 . 0 0
\u6570\u5b57\u4e4b\u95f4\u5b58\u5728\u7684\u770b\u4f3c\u7a7a\u683c\u7684\u7a7a\u767d\u5b57\u7b26\u5bfc\u81f4str2num()\u51fd\u6570\u65e0\u6cd5\u6b63\u5e38\u4f7f\u7528\u3002
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e0d\u5f97\u4e0d\u5bf9\u8fd9\u4e9b\u7a7a\u683c\u8fdb\u884c\u5220\u9664\u3002\u4f46\u6211\u7684\u6570\u636e\u91cf\u5f88\u5927\uff0c\u624b\u52a8\u5220\u9664\u662f\u4e0d\u73b0\u5b9e\u7684\u3002\u56e0\u6b64\u4e0d\u5f97\u5df2\u4f7f\u7528\u4e86\u8fd9\u4e2a\u51fd\u6570\u547d\u4ee4\uff1a
y = strrep(x,\u2019 \u2018,\u2019\u2019);
\u7ed3\u679c\u53d1\u73b0\uff0c\u5f88\u5947\u602a\u7684\u662f\uff0c\u8fd9\u4e9b\u7a7a\u683c\u4f9d\u7136\u5b58\u5728\u3002\u6211\u81ea\u5df1\u968f\u4fbf\u7f16\u4e86\u4e00\u4e2a\u5b57\u7b26\u4e32\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u7ed3\u679c\u8bc1\u660e\u51fd\u6570\u662f\u53ef\u4ee5\u4f7f\u7528\u7684\u3002\u53ef\u89c1\uff0c\u6570\u636e\u4e2d\u8fd9\u4e9b\u770b\u4f3c\u7a7a\u683c\u7684\u7a7a\u767d\u5b57\u7b26\u5b9e\u9645\u4e0a\u5e76\u975e\u7a7a\u683c\u3002\u7ecf\u8fc7\u8bd5\u9a8c\uff0c\u4ed6\u4eec\u4e5f\u4e0d\u662f\u5236\u8868\u7b26\u3002\u7531\u4e8e\u65f6\u95f4\u6709\u9650\uff0c\u6211\u6700\u7ec8\u5e76\u6ca1\u6709\u53bb\u786e\u8ba4\u8fd9\u4e9b\u7a7a\u767d\u5b57\u7b26\u5230\u5e95\u662f\u4ec0\u4e48\u3002\u53ea\u662f\u7b80\u5355\u5730\u5c06\u5b57\u7b26\u4e32\u4e2d\u5176\u4e2d\u4e00\u4e2a\u7a7a\u767d\u5b57\u7b26\u8d4b\u7ed9\u4e86\u4e00\u4e2a\u53d8\u91cf\u4f5c\u4e3a\u6837\u4f8b\u3002\u64cd\u4f5c\u8fc7\u7a0b\u5927\u81f4\u5982\u4e0b\uff1a
d = x(5);
y = strrep(x,x(5)\uff0c\u2018\u2019)
\u7ed3\u679c\u8bc1\u660e\u8fd9\u6837\u505a\u662f\u6709\u6548\u7684
解决的办法可以用linspace函数获得等距的向量组。其使用格式
linspace(X1, X2, N)
对于本案，可以这样处理
x1=linspace(0,r1,100) %此处的100可以根据需要调整
x2=linspace(0,r2,100)
x3=linspace(0,r1+r2,100)
将x2和y2的长度修改为等于x3的长度即可：
r1=23.7;
r2=31.3;
% 先定义最长向量x3
x3=0:0.01:r1+r2;
% 修改x2和y2，缺少位补0
len1 = length(x3);
len2 = length(0:0.01:r1);
x2=[0:0.01:r1, zeros(1,len1-len2)];
y2=x2;
k=-sqrt(3)/3;
n=r1^2/r2^2;
A=(1-n).*(x2.^2-y2.^2)-n*(1+k).*x3.^2+2*n.*x3.*(x2+k*y2)
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