Question

高手帮忙检查一下matlab错误啊，实在是找不出来了

第一段
function x(V,H,S)
x=[];
k=1;
for v=0:0.1:V
for h=0:0.1:H
for s=0:0.1:S
i=(v+h)*(v*(1+s)-h*s);
t=(-(s^2)*(h^2+v^2)+(2*s^2+4*s+1)*h*v)/2*(h+v);
if(i>1&t>0)
k=k+1;
r=1/i;
x(k,1)=v;
x(k,2)=h;
x(k,3)=s
x(k,4)=r;
x(k,5)=1-r;
x(k,6)=t;
end
end
end
end
x
k

第二段
function xb(V,H)
x=[];
k=1;
for v=0:0.1:V
for h=0:0.1:H
i=(v+h)*v;
t=h*v/2*(h+v);
if(i>1&t>0)
k=k+1;
r=1/i;
x(k,1)=v;
x(k,2)=h;
x(k,3)=r;
x(k,4)=1-r;
x(k,5)=t;
end
end
end
x
不得行啊

运行结果：
??? Input argument "V" is undefined.

Error in ==> xb at 4
for v=0:0.1:V

完全不懂这个了， 我要怎样定义v呢

Answer 1

function fx(V,H,S)
x=[];
k=1;
for v=0:0.1:V
for h=0:0.1:H
for s=0:0.1:S
i=(v+h)*(v*(1+s)-h*s);
t=(-(s^2)*(h^2+v^2)+(2*s^2+4*s+1)*h*v)/2*(h+v);
if(i>1&t>0)
k=k+1;
r=1/i;
x(k,1)=v;
x(k,2)=h;
x(k,3)=s
x(k,4)=r;
x(k,5)=1-r;
x(k,6)=t;
end
end
end
end
x
display(['k=',num2str(k)]);

% %第二段
function xb(V,H)
x=[];
k=1;
for v=0:0.1:V
for h=0:0.1:H
i=(v+h)*v;
t=h*v/2*(h+v);
if(i>1&t>0)
k=k+1;
r=1/i;
x(k,1)=v;
x(k,2)=h;
x(k,3)=r;
x(k,4)=1-r;
x(k,5)=t;
end
end
end
display('x=');x

将第一句function x(V,H,S)改为function fx(V,H,S)即可.变量名不能与函数名同名,还有一个要注意的问题是上面是两个函数,也就是说要保存为两个m文件.