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A function to draw a circle with only radius as parameter?
function [] = plot_circle(R) % Plots a circle of radius R [X,Y] = cylinder(R,1000); plot(X(1,:),Y(1,:)) axis equal...

13 years ago | 1

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swap letters 2 by 2 in a string.
S = 'abcdefg' S = S([2 1 4 3 6 5 7]) Or, generally: for ii=1:2:numel(S)-mod(numel(S),2),S([ii,ii+1])=S([ii+1,ii]),e...

13 years ago | 1

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imshow command not found
Apparently you do not have the IPT installed. Did you purchase this toolbox with MATLAB? You might have to talk to the system ...

13 years ago | 1

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'eval' works on one computer but not on the other....
On the computer where it does not work, do this: which cd See if someone has saved a script named cd that is masking the...

13 years ago | 0

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How do I deal with large modulus in mod function that produces a wrong result?
I would say you have to go symbolic. mod(sym(A),sym(B))

13 years ago | 0

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Left - Rigth - double click on a plo
Look at this example for how to use this property. function [] = figselect() % Click in the axes figure('windowbu...

13 years ago | 0

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Cell array....searching without a loop?
Post a simple, small example of the FOR loop you have been using to solve the problem. Say A = {rand(5,3,2);rand(5,3,2);r...

13 years ago | 0

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Radio button panel prblm
In your Least_Sqaure_Optimization_OpeningFcn put this: set(handles.uipanel1,'SelectedObject',[]) Where uipanel1 is the...

13 years ago | 1

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How can i skip iterations in for loop
Why not just give up on the FOR loop and use a WHILE loop? That way you control when to increment the index the whole time! As...

13 years ago | 1

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what is global nummod
Why don't you ask the author. Hist email contact is listed on this page: <http://www.clear.rice.edu/elec301/Projects01/>

13 years ago | 0

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Cool examples of how Matlab is useful
I would humbly submit this code I wrote for my M.S. in Mechanical Engineering. It calculates the resonant frequencies and plot...

13 years ago | 3

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get a matrix of only zero
A = zeros(2,5)

13 years ago | 0

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uicontrol assigning values a a user defined date
Here is one way to make the code return a value. function [userdate]= datepicker (~) figure('units','pix',... ...

13 years ago | 0

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Trying to create an array of Matrices
Use t{i} instead of t(i)

13 years ago | 1

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Why quad function can't communicate with my subfunction?
If that is the error message, communication is not the problem. Re-read the message.... there is a problem with what your funct...

13 years ago | 0

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Why does this error occur when using simplify?
Because you are misusing the function. I think you want this: syms x eq = 3.1*cos(sin(x))*tanh(x) simplify(eq) % T...

13 years ago | 0

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problem with combvec, allcomb
This will solve your problem. function M = expand_vects(A) % A is a cell array of 1-by-n vectors where n need not ...

13 years ago | 0

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find simlar number in array
Similar or identical? Those are different! .5 is similar to .6, but not identical. If you mean identical, you can count how...

13 years ago | 0

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Create changing variable names inside a loop
Don't program this way in MATLAB! Please take the time to learn proper programming techniques for the language you are using. ...

13 years ago | 0

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Reading from GUI edit boxes using a self made function
Where is that function located? Is it in the GUI m-file or a separate m-file? From where are you calling it? Are you calling ...

13 years ago | 0

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how to solve unknown coefficents in matrixs
Use the NULL command. A =[1 2 3;3 4 5]; X = null(A); A*X %Check

13 years ago | 0

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Averaging a Random Walk with Numbers Spanning [-1,1]
Wouldn't this be easier? T = 2*rand(1,10)-1; Num_change = sum(logical(diff(sign(T))))

13 years ago | 0

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Answered
Entering a whole word into an arary.
This works whether your user enters only commas between words, only spaces, or both (even colons or semicolons!). I test it out...

13 years ago | 1

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change shorkeys "ctrl+shift+0" for editor
Why not just Alt+Tab your way through?

13 years ago | 1

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append elements to a vector
The usual way to do it is something like this. v = []; for ii = 1:3 v = [v ii:4]; end v % Show v ...

13 years ago | 0

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Array lengths and loops.
Couple of things. It looks like you are masking both the LENGTH function and the I function with a variable. Don't do that - c...

13 years ago | 0

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Legends display incorrect markers
I would dispense with keeping track of all that stuff anyway. Switching current figures in a loop, keeping track of handles, ca...

13 years ago | 0

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How do I create a set of 20 random binary numbers (only 0 and 1) but such that 0 or 1 does not repeat 4 times in a row?
Some methods proposed here don't seem to generate 'random' vectors. Here is an approach that is perhaps 'more random' than some...

13 years ago | 0

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Spaces for readability in code
Here is how I do it: plot(rand(1,1,1) + 17/2,'r*') A = (rand(1,5) - 3) + bsxfun(@(x,y) x+y,Z,U) - cellfun('length',M{:...

13 years ago | 0

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How can I count one matrix in big another matrix ?
There may be something in the IPT that does this, or you can try this FEX file out: <http://www.mathworks.com/matlabcentral...

13 years ago | 0