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ocr problem
Check out this similar problem. Instead of having so much else ifs, do a conversion of a number to string. That is, 'A' is a 65,...

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How can i make a graph only with numerical values?
x=[1 2 3]; % or x=1:3 y=[3 4 6]; plot(x,y); it will plot a sequence of points. If you dont want them to be connecte...

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Need Help with For Loops
message=input('Enter a message to encode','s'); for i=1:length(message) if (message(i)>=65 && message(i)<=90) ...

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error in imshow()
imshow() does not take any matrix, the values mast be of some format (i am not sure). You can use imagesc(), which, I think, can...

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There is any function substituting for this 'for loops'?
A=zeros(3,4,3); A(:,:,1)=[1 0 1 1;1 1 1 1;0 0 1 0]; A(:,:,2)=[1 1 0 0;1 1 0 1;0 0 1 0]; A(:,:,3)=[1 1 1 1;0 0 1 1;1 0 1 ...

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solve equation without fsolve
Assuming that each RT will yield four roots: a=0.003925; b=0.110361; d=1.492690; R0=100; T=zeros(4,length...

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how to get handle of an image opened in the GUI figure window, to be used in other callbacks.
handles.a=str2num(get(handles.parameter1,'string')); %similar to global variable (don't know for sure) guidata(hObject, h...

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How do I plot a selective range of x-axis values
your 't' and 'm' must be the same size; open the variable 't' from Workspace and look what index contains the value of ~600. Let...

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a simple clasification of matrix elements
There is one quick way to do it, however it is based on the assumption that the initial array will always have only 3 distinct v...

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How to keep the size aspect ratio of GUI form fixed?
Hi all. I am trying to make my GUI figure to be resizable but I need the aspect ratio to be fixed. Is this possible to achieve?

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Why does this happen? - In an assignment A(I) = B, the number of elements in B and I must be the same
Maybe, this will do: function dxdt = ModelingQ2(t,x) dxdt = zeros (size(x)); dxdt(1,:) = x-3; % your k(1)=1, so you can omi...

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fsolve usage
command line: [Vo,t]=offensive(pi/6,10,.1) Your function code does not make sense. You pass theta, weight, c to it, but then y...

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getting x and y for 3d
A=yourPicture; [H L]=size(A); dx=theRealLengthOfTheView/H; %this you must know, otherwise you can not scale the image. dy=the...

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Sum function?
n=given; i=1:2^(n-1); %gives you array of integers from 1,2,...2^(n-1) % let's say your function is f=2i; f=2*i; ...

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matlab view
at the right top corner of the editor window there is a little 'down' arrow(to dock window). Press on it and the editor will be ...

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How to zero pad in frequency domain ?
You zeropad a matrix of frequency spectrum the same way you would zeropad any matrix. For example, if your frequency matrix is m...

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legend
when you do plot something you can specify your 'something' by the legend to know which plot corresponds to which function. try ...

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How can I plot the result of FZERO?
If you plot the function in the range from -20:20, you can see, that it crosses the x-axis around -1.0772 (and probably nowhere ...

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Message window in GUI (MatLab)
Hello. I am trying to create a text window in GUI that will be used to display messages/current activity of the program. It shou...

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