Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

i trung to run this, but it show to me this error :

Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

can any one help me .

the error is in line 2 .

this is the code:

fiqure()

1. plot (V_X(1,:)),((V_X(2,:)),'k')

2. hold on

3. title(('--------',int2str(n)))

4. plot ((matrixV(1,:)),((matrixV(2,:)),'--r*')

5. hold off

Answer 1

[Cris LaPierre]

Remove the numbers before you commands.

Check that your parentheses are lining up the way you intend. Your first plot command has a mismatched number of opening and closing parentheses. Syntax should be plot(x,y)

plot(V_X(1,:)),((V_X(2,:)),'k')
             ^  ^ remove these ones

You use a lot of unnecessary parentheses. Removing these makes it easier to spot mismatches.

figure
plot(V_X(1,:),V_X(2,:),'k')
hold on 
title('--------',int2str(n))
plot(matrixV(1,:),matrixV(2,:),'--r*')
hold off

[Anas Abu mdegam]

it works

thank you