Plotting an Anonymous Function

20 次查看（过去 30 天）
Jake Farley
Jake Farley 2017-1-31
评论： Jake Farley 2017-1-31
I have created an anonymous function
sqr = @(x) x.^2;
and I am trying different methods for plotting this function, and none seem to plot the function correctly (aside from ezplot) I have tried
figure
plot(sqr(-5:5))
figure
fplot(sqr(-5:5))
Using plot(), it creates a correct looking plot but my axes are not correct, it displays the function from 1 to 11, centered at 6. (so the range is correct)
using fplot() it creates horizontal lines from x = -5:5 at y = 0, 2, 4, 9, 16, 25
Is this what is supposed to happen and I just don't fully understand the functions yet? Or have I set my function up incorrectly?
Thanks.

请先登录，再回答此问题。

采纳的回答

James Tursa
James Tursa 2017-1-31
编辑：James Tursa 2017-1-31
You need to explicitly give plot the "x" information, not just the "y" information. E.g.,
x = -5:5;
plot(x,sqr(x))

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Line 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