清空筛选条件
清空筛选条件

Why is my graph coming out blank when i try and plot this code?

1 次查看（过去 30 天）
Christopher Saenz
Christopher Saenz 2019-2-23
回答： Star Strider 2019-2-23
x=[0.1:0.1:5];
y=(sin(x))/x;
figure(2)
grid on
plot(x,y)

请先登录，再回答此问题。

回答（2 个）

Brian Hart
Brian Hart 2019-2-23
It's an error in your calcuation of y. Check the size and you'll see it's coming out as a scalar. Replace "/" with "./", since you want element-wise division.
Star Strider
Star Strider 2019-2-23
Because you are calculating a single point.
If you use element-wise division here (using ./ rather than /), you get the plot you expect:
x=[0.1:0.1:5];
y=(sin(x))./x;
figure(2)
grid on
plot(x,y)
See the documentation on Array vs. Matrix Operations (link) for an extended discussion.

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 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