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how to count the total number of recursion ?
The problem is that you're not passing |num| to |collatz|, so how can it know how many times it has been called? Here is a versi...

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Add values to a Matrix
If you're trying to collect all the values for the inner loop ( |for i=1:fil| ), you could try putting M = []; above the...

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Plotting 10 graphs with different colors and markers
There is a table in <http://www.mathworks.com/help/matlab/ref/linespec.html LineSpec (Line Specification)> with 13 different mar...

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Unnest a Matrix of strings
If I understand what you're trying to do, you can't do it. A 3x3 matrix of strings looks like this: ['abc';'def';'ghi'] ...

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Simple question about plotting a convolution
Your code will give you a vector of length |length(y1)+length(y2)-1|, so you'll get an error if you plot it against |x| (which i...

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Inner matrix dimensions must agree.
Note the top error statement: Inner matrix dimensions must agree. Have you tried testing these functions with vector arg...

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Help on sign function argument
Use 2*sign(x-0.01)-1

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How to Create Libraries in Matlab?
The simplest approach would be to put the functions in their own folder and add that folder to the <http://www.mathworks.com/hel...

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Make Smooth Curves using the points
The reason your points are not connected is that you are plotting them one at a time. You need to create some vectors and plot t...

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How to reproduce MATLAB's normal distribution random numbers?
I did a quick search, and found <https://github.com/numpy/numpy/issues/2047 Patch with Ziggurat method for Normal distribution (...

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Calculation from user input with blank cells
The answer depends on how you would calculate the ratio |Mo| for fewer gears. If, say, the user omits Gear 3, do you want to sim...

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how to find the minimum value based on two independent value
I'm going to assume you're really trying to minimize a function of two variables and show how you can explore it to get some ins...

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Issue finding numerical error (problem with MATLAB's precision?)
That pesky MATLAB - getting more accurate all the time! Here is an example that I got from the blog article <http://matlabgeeks....

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Add folders and subfolders to projrct through script
See <http://www.mathworks.com/help/matlab/ref/mkdir.html mkdir>.

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Accessing Cell Array elements
I'm not sure I understand all the details of what you are trying to do, but I can show you with an example how to modify the sec...

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symbolic cubic polynomial solver
I ran the same code and got 3 solutions: syms x a xsols = solve(x^3+x^2-x+a,'real',true); size(xsols) ans = ...

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what is the equivalent matlab function for the operator || || ?
You're probably referring to the <https://en.wikipedia.org/wiki/Matrix_norm matrix norm>, which is a generalization of the idea ...

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Subscripts in MATLAB Legends
I'm beginning to think you should submit a bug report. However, maybe you'll get more consistent results with h=legend('$e_...

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How is it possible that matlab solves two simultaneous equations which have relation to each other? I am very new with matlab and can not get it done. I want to solve several equations with the euler method bot always get errors.
You could just write Pg = 1; but a better way, since you know how large the vector will be, is to preallocate the memor...

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How Can I establish a raking scale of variables within an array?
Your ranking scheme is somewhat unusual because usually the ranking does not have any gaps in it. That would be easy to implemen...

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Matrices with Polynomial Entries functions
Maria, is the matrix inverse your goal, or are you using it for some other purpose? A common mistake is to solve a linear equati...

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Use dynamic "offset" in a for-loop
It would be better to use a |while| loop to increment |t| directly: t = window; while t < numel(m) % increment t ...

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Stop permanently execution of codes under a Callback using another Callback
Reena, have a look at <http://www.mathworks.com/matlabcentral/answers/101649-how-can-i-interrupt-a-callback-and-not-come-back-to...

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Extract certain rows from matrix
Assuming you read the other data file into |another_matrix|, the answer is extracted_data = another_matrix(loc); I sugge...

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How can I plot using a string in MATLAB?
It's not necessary to have all those conditional statements. Just use indexing: function plotting_fcn(idx) % Note: idx cou...

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Is it possible to solve a pair of two equations for four unknowns
Since the answer is not unique, just pick x=y=1 and solve the linear equation to get A and B: [12.12 2.35; 8.55 6.44]\[6.20...

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Amplitude adjustment on integral
Just calculate the integral (see <http://www.mathworks.com/help/matlab/ref/integral.html integral>), say q = integral(fun,x...

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LaTeX interpreter on a legend
You could try setting the interpreter to LaTeX: legend(ar, 'Location','best','Interpreter','latex') For this to work...

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Index out of bounds
The variable name |filename| is probably |char|, not numeric. Suppose you define filename = '12'; Then if you view the s...

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inflection point on sum of sinusoids
If you define a vector A = [A1 A2 ... An], and analogous vectors |w| and |p|, then in MATLAB y = sum(A.*sin(w*t+p)); and...

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