在Matlab上绘制3d不等式 [英] Draw 3d Inequality on Matlab

问题描述

我正在努力在Matlab上画一个不等式.我需要使用以下约束和函数来绘制3d空间.我拥有的函数是:

I'm struggling to draw an inequality on Matlab. I need to draw a 3d dimensional space using the following constrains and function.The functions that I have are:

x>=5,000
y>=7,000
z>=3,000
3x+2y+5z<=53,000

我不知道该怎么做，非常感谢您的帮助！

And I can't come up with any idea how to do that, help will be very appreciated, thanks!

推荐答案

根据编写代码之前可以完成的工作，可以采用不同的方法.最简单的是这样:

Depending on how much work you can do before writing code there are different ways to do this. The simplest is this:

x=linspace(5000,53000/3); % create vectors for possible values of each variable
y=linspace(7000,53000/2);
z=linspace(3000,53000/5);
[X,Y,Z]=meshgrid(x,y,z);
I=(X>=5000) & (Y>=7000) & (Z>=3000) & (3*X+2*Y+5*Z<=53000); % combine all constraints
scatter3(X(I),Y(I),Z(I),'filled') % scatter plot, has many options which may prove useful

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