Why won't Matlab plot anything?

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.

[777]

are there no error reports???

[Thomas]

Should work.. Does

figure()

open up the figure window?

Answer 1

[M]

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);

[Josh]

There's still nothing. I haven't gotten a single plot to come out at all. I assume it's something to do with my preferences, as it's newly installed, but I can't find anything.

[Sivan Fox]

This worked for me though after some 15 minutes getting mad at my computer. Thanks you!

[Tolstoy Hardie]

Thanks

[Stina Ravdna Lorås]

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]

wow it works for me too! thanks!

[Walter Roberson]

@Stina Ravdna Lorås

plot (x,(sin(x*(M+(1/2))))./(sin(x/2)))
                          ^

[Tejas Barethiya]

thanks...;)

[LUKA]

legend

[Yash dev]

my plot function showing that

plot script as a function is not supported what to do??

[DGM]

Rename your script so that it doesn't conflict with the names of existing functions.

Answer 2

[Josh]

I typed in figure() and now it works perfectly. Thanks for the help.

[Jing Yin]

Thank you. It solves my problem too.

Answer 3

[Mitchell Frisch]

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

[atousa yazdani]

hasn't helped me!

[Walter Roberson]

@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.

Answer 4

[Megat]

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

[DGM]

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.