MATLAB: Am I getting an error “vectors must be the same length”

graphingplottingvectors

I am trying to call an anonymous function to graph, one graph using 1 resolution, the other using .01 resolution. I keep getting a "vectors must be the same length" error when running.

f=@(x) ((exp(x)).*(sin(x)))./((x.^2)+1);

x = 3:1:7; x1 = 3:.01:7;

plot(x,f(x),x1,f(x))

Best Answer

It's a typo; your last x must be x1

 plot(x, f(x), x1, f(x1))

Related Solutions

MATLAB: What does “Vectors must be the same lengths.” mean

Use the command

 whos

to check the dimensions of all the variables.

 Your error flag indicates that size(t) and size( tracefar) are not compatible for 
 plot(t, tracefar)

Hope this helps.

Thank you for formally accepting my answer

Greg

MATLAB: Patch color error “Vectors must be the same length.”

The docs linked by Geoff mention that you can specify an n-by-1-by-3 array of RGB values (for n number of faces). I've defined c to be an n-by-3 array of RGB values and then used reshape() to get the dimensions right:

c=[0    0   0.5156           % <- RGB of first color
   0.7344   1.0000  0.2656]; % <- RGB of second color
figure;
patch(x, y, reshape(c,[],1,3), 'FaceColor', 'flat');

Best Answer

Related Solutions

MATLAB: What does “Vectors must be the same lengths.” mean

MATLAB: Patch color error “Vectors must be the same length.”

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