Why won't Matlab plot anything?

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Josh
Josh 2012-3-29
评论： DGM 2023-6-17
When I try to plot anything, nothing comes up. There are no errors, there's just nothing.
>> x=-10:.1:10;
>> y=sin(x);
>> plot(x,y);
No figure window pops up.
  2 个评论
777
777 2012-3-29
are there no error reports???
Thomas
Thomas 2012-3-29
Should work.. Does
figure()
open up the figure window?

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采纳的回答

M
M 2012-3-29
You may have previous plot open somewhere and Matlab is plotting it on the same figure. Check for open figures, you might find it.
Alternatively, Use "close all" at the beginning and try again.
close all
x=-10:.1:10;
y=sin(x);
plot(x,y);
  10 个评论
显示 8更早的评论
Yash dev
Yash dev 2023-6-15
my plot function showing that
plot script as a function is not supported what to do??
DGM
DGM 2023-6-17
Rename your script so that it doesn't conflict with the names of existing functions.

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更多回答（3 个）

Josh
Josh 2012-3-29
I typed in figure() and now it works perfectly. Thanks for the help.
Mitchell Frisch
Mitchell Frisch 2019-4-19
Try adding a line style to your plot function, such as
plot(x, y 'b-')
I've had a similar problem and this fixed it for me
  2 个评论
Walter Roberson
Walter Roberson 2022-4-27
@atousa yazdani
You do not appear to have posted your code, which makes it difficult for us to tell you how to repair it. It is not at all productive for us to list all of the different ways that can possibly lead to a plot not working as expected.

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Megat
Megat 2023-5-23
q=5; s=0.002; b=20; n=0.03;
g=@(f) ((s*sqrt)*(b*h)^(5/3))/(n*(b+2*h)^(2/3))-q;
fplot(g,[0 1]), grid, xlabel('f'), ylabel('g(f)')
why it show nothing
  1 个评论
DGM
DGM 2023-5-24
You should get an error message that tells you why.
You created g as a function of f, but not only is it invariant on f, it's a function of h, which is undefined.

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