Why can't I generate a 3-d surface when using surf? (file)

2 次查看（过去 30 天）
WEN SHIN LU
WEN SHIN LU 2022-1-22
评论： WEN SHIN LU 2022-1-23
My version is 2015b. I use Mac.
x=linspace(-2,2,20);
y=x';
z=y*x;
surf(x,y,z)
And the output has nothing, shownd in picture.

请先登录，再回答此问题。

回答（1 个）

Cris LaPierre
Cris LaPierre 2022-1-22
Ran in:
Z must be a matrix. In your code, it is only a vector. Follow the eamples on the surf documentation page. You will find meshgrid helpful for this purpose.
x=linspace(-2,2,20);
y=x';
[X,Y] = meshgrid(x,y);
Z = X.*Y;
surf(x,y,Z)
  3 个评论
显示 1更早的评论
WEN SHIN LU
WEN SHIN LU 2022-1-23
Thank you! I found it's about my files. I created a file called surf before. That's the issue.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Lighting, Transparency, and Shading 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by