Why won't Matlab plot anything?
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采纳的回答
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
Josh
2012-3-29
Sivan Fox
2020-1-21
This worked for me though after some 15 minutes getting mad at my computer. Thanks you!
Tolstoy Hardie
2020-8-1
Thanks
Stina Ravdna Lorås
2020-9-12
I have got almost the same problem. A plot window showes op, but theres nothing on it... No errors showing up...
close all
clear all
M=10
x=-pi:0.01:pi;
grid on
plot (x,(sin(x*(M+(1/2))))/(sin(x/2)))
Han Yan
2021-2-14
wow it works for me too! thanks!
Walter Roberson
2021-2-14
plot (x,(sin(x*(M+(1/2))))./(sin(x/2)))
^
Tejas Barethiya
2022-1-10
thanks...;)
LUKA
2022-11-11
legend
Yash dev
2023-6-15
my plot function showing that
plot script as a function is not supported what to do??
DGM
2023-6-17
Rename your script so that it doesn't conflict with the names of existing functions.
更多回答（4 个）
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
atousa yazdani
2022-4-27
hasn't helped me!
Walter Roberson
2022-4-27
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.
Megat
2023-5-23
0 个投票
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
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.
Sanjay
2025-2-7
0 个投票
I use ubuntu operating system. For opening Matlab R2024b I run "/home/user/Documents/MatLab/bin/matlab" as matlab is installed in the "Documents/MatLab" folder. Now for opening plots just add "-softwareopengl" to it. So as a whole the code is "/home/sanjay/Documents/MatLab/bin/matlab -softwareopengl"
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