Respondida
how can find angle for symbolic function
The angle is just: ANG = atan(imag(r2s)/real(r2s));

más de 13 años hace | 1

Respondida
Index exceeds matrix dimensions
I think you mean this: F = randi(100,3840,15); % Random 3840-by-15 H = randi(100,96,15); % Random 96-by-15; J =...

más de 13 años hace | 1

Respondida
Form a matrix from elements of a second matrix
Your question is a little unclear, but I think you can get what you want with logical indexing. idx = Diameter<6; % ...

más de 13 años hace | 0

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Extract a portion of vector
Say this is your vector: A = [3 4;5 6;8 7;9 8;7 5;5 3;3 9;12 4]; And you want all rows from 5 to the end to be nan: ...

más de 13 años hace | 1

Respondida
how can i show a numerical output in gui
Give this a try: function guitrial S.voltageH = uicontrol('Style', 'PushButton',... 'Str...

más de 13 años hace | 0

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Respondida
How to plot several different points from an equation? (Macaulay's notation)
function [ V ] = Untitled2(x) V = zeros(size(x)); V(x<=.76) = 632.568; V(x>.76 & x<=.99) = -2090.455; Now, from ...

más de 13 años hace | 1

Respondida
How to tag output of function which is a vector in a new array/matrix in increasing order?
A{1} = [ 4 3 8 27 10]; A{2} = [4 3 8 27 10]; % etc... Then later you can examine them: A{2} . . ...

más de 13 años hace | 1

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plot vectors from a point to another point
cla quiver(2,3,5,5,0) % Set scale to zero axis tight As I told you in <http://www.mathworks.com/matlabcentral/answer...

más de 13 años hace | 0

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Respondida
plot vectors head to tail
I show you two methods. Both have their uses, so I'll let you decide which fits your needs: % Make a vector from (2,3) t...

más de 13 años hace | 4

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Respondida
initialize a MxN matrix with the same number
Another: % Make a 3-by-8 matrix of 9s: A(1:3,1:8) = 9

más de 13 años hace | 17

Respondida
How to "accept" an answer to your question?
Make sure you are logged in. If the question has already been closed you will see "Accepted Answer by ______" to the right of y...

más de 13 años hace | 0

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Respondida
Write program by For loop, how can I stop
A=[40 47 50 60 70 75 80 80 90 55]; B(1)=70; C(1)=60; for k=1:9; C(k+1)= B(k)+C(k)-A(k); if C(k+1)<0,bre...

más de 13 años hace | 0

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Respondida
How can I call "UNIQUE" function in a MEX file?
Read this document, it describes how to call a MATLAB function from a mex file. doc mexCallMATLAB

más de 13 años hace | 2

Respondida
How to evaluate calback function in edit text uicontrol?
Please do not program callback using strings. Use function handles instead. Save this in an M-file then run the file to see ho...

más de 13 años hace | 3

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Respondida
Keeping plot legend in foreground
I cannot reproduce this with: plot(1:10) legend('plot') line([5 5],[0 10]) So I want to ask what your code looks l...

más de 13 años hace | 0

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Respondida
evalAt() does not work any way I use it
What do you see when you type these? Do you see the help, or do you see function not found? help evalAt help subs ...

más de 13 años hace | 0

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Fibonacci function displaying issues
If you choose to use recursion, you will have quite some time with this. I think it is better to use iteration, myself. fu...

más de 13 años hace | 0

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Respondida
Error: Function definitions are not permitted in this context. ???
Where did you put that code? You cannot define a function at the command line or in a script M-file.

más de 13 años hace | 0

Respondida
Why am I getting the "Index exceeds matrix dimensions" error when trying to perform triple integral of a function as indicated below? Thanks
You forgot one dot: h=@(x,y,z) cos(x)./sqrt((y.^2.)+(z.^2.)-2.*y.*z.*cos(x));

más de 13 años hace | 0

Respondida
SLICE: Hiding the edges of slice
I am not sure if this is what you have in mind: set(h,'edgecolor','none')

más de 13 años hace | 0

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Respondida
I need to plot 8 bit long 256 data in two dimension axis
I have no idea how your data is structured. So I will leave that to you and just show how to label the axes. x = 1:10; ...

más de 13 años hace | 0

Respondida
Trigonometri Problems at atand and acosd
This is perfect for the FZERO function.... fzero(@(z) 54.8-acosd(20./(100-z))+atand(40./(500-z)),30)

más de 13 años hace | 0

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Respondida
Probabilty occurence of a number in long number sequence
X = randi(256,1,300)-1; % Data on [0 255] P = histc(X,0:255)/length(X); % Probabilities. [(0:255).' P(:)] % Show ...

más de 13 años hace | 0

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Respondida
How can i do this?
One thing I notice in your code. It looks, by the way you index inside the FOR loop, like your image is 3D. If so, the variabl...

más de 13 años hace | 1

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Respondida
Need to map values to 0:1 scale for efficiencies..... Help?!
Why not use: semilogy to plot the efficiencies if they vary by orders of magnitude?

más de 13 años hace | 0

Respondida
ismember function too slow
BinA = B(ismember(B,A)); for n=1:length(BinA) do-something with BinA(n) end

más de 13 años hace | 1

Respondida
how to craete a matrix with desired elements
Many ways! What do you have in mind exactly? In the most general form: function A = makematrix() % Help user...

más de 13 años hace | 0

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Respondida
How to find the median from each of the column with certain condition
Note that using FIND is not necessary.... x = randn(10,10); indices = abs(x)>2; % This is a logical index. x(indic...

más de 13 años hace | 0

Respondida
Easy GUI - Multiple Errors
Apparently handles.output is the handle to a figure object. What object were you trying to set the string to? Try thi...

más de 13 años hace | 0

Respondida
Time format conversion command
If you have a cell array, I would do this: A = {'36:40.0';'36:40.1';'34:40.3'}; % A cell array B = '${num2str(str2n...

más de 13 años hace | 0