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Angles from XY coordinates from a matrix
Seems like a simple FOR loop would do the trick. for ii = size(a,1):-1:1 P12 = [a(ii,3)-a(ii,1), a(ii,4)-a(ii,2)];...

mehr als 13 Jahre vor | 2

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Logical -1 = Logical 1?
Yes: logical([-1 0 1 20 -10 .001 eps ]) The exception is NaN. NaN is non-zero, yet cannot be converted to logical. ...

mehr als 13 Jahre vor | 0

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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...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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 ...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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))

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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/>

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 3

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

mehr als 13 Jahre vor | 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',... ...

mehr als 13 Jahre vor | 0

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

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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 ...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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. ...

mehr als 13 Jahre vor | 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 ...

mehr als 13 Jahre vor | 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

mehr als 13 Jahre vor | 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))))

mehr als 13 Jahre vor | 0

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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...

mehr als 13 Jahre vor | 1

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

mehr als 13 Jahre vor | 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 ...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 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...

mehr als 13 Jahre vor | 0