5楼: Originally posted by notbad at 2015-09-17 12:46:33
.楼主，我刚用你这个程序代了一组数去算，可以得出结果的啊。我在命令窗口写的是x=SurfaceEnergy(2,4,6)，得出来的结果是x=【0；4.0812】，程序应该是没问题的，之前提示d未定义是不是你的输入有问题？
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2楼: Originally posted by Sibewolf at 2015-09-16 16:58:45
function x=SurfaceEnergy(a,d,p)
% a is wetting angel
% d is dispersive part of liquid, vector
% p is polar part of liquid, vector

A=;
b=(d+p).*(1+cos(a*pi/180));
x=A\b;
end
返回变量要和定义 ...

3楼: Originally posted by Jacob1201 at 2015-09-17 08:32:37
我编的程序中，每一条命令都可以单独执行，但为什么放在一起就出问题呢？老是提醒 “d” is undefined......