How to color RED to the lower portion of the curve

2 次查看（过去 30 天）
Atom
Atom 2013-4-18
How to color RED to the lower portion of the curve y=x^2
x = 1 : 0.1 : 10;
y = x.^2;
plot(x,y)
axis([1 10 0 100])

请先登录，再回答此问题。

采纳的回答

Kye Taylor
Kye Taylor 2013-4-18
Replace the
plot(x,y)
command with
area(x,y,'FaceColor',[1 0 0])
  6 个评论
显示 4更早的评论
Atom
Atom 2013-4-18
Please suggest about the meaning of patch([x,0],[y,100],'b').
Kye Taylor
Kye Taylor 2013-4-19
the first two inputs to patch can be thought of as points that define vertices of some polygon. the vectors x and y are the lower parts of that polygon. By adding a point (0,100) to the set of vertices, we get the top left corner of the polygon. Without that vertex, the behavior was as you said above, only the "upper portion" was colored instead of the "whole upper part".

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Surfaces, Volumes, and Polygons 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