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Extract the Weibull coefficients
When you don't know what the name of a function in MATLAB might be, use the lookfor function. lookfor weibull If you scan down...

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Recursion Revisited - My Code:
Your code IS working acceptably. Of course, if you call it with a vector of length 1e6, or something like that, you can be getti...

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How to find the maximum point of a fitted curve
What was wrong with the result? (Since I wrote the SLM tools.) Can I test your code? Of course not. We are not given the routin...

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How do I normalise a Matrix that is close to Singular or badly scale
You CAN'T do it. Or, sometimes, you can. And it all depends on what makes the matrix singular, or badly scaled. How was the matr...

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How to compare the complexity of two algirthms in MATLAB
Sorry, but this has been discussed many times before on this site. There is no tool that does it for you, nor can one easily be ...

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How to get max of repeated values?
Easy enough. Use unique, then it is just a call to accumarray. C = [0.5000 0.5000 0.3000 1.0000 0.8000 0.3000 ...

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Solving matrix without values
Yes. Learn how to use the symbolic toolbox. If you don't have it, then you need it for this purpose. syms theta real A = [cos(...

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Creating a Lagrange Polynomial with Unknown 'x.'
I can understand where you went wrong, as it is a common mistake. What worked for symbolic variables, did not work for function ...

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what to do in this case?
You cannot set a variable to have a value inside another statement. For example, this line of code would not be valid in MATLAB...

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How do I pass a function a mathematical function of the for x.^2
Time to learn about function handles! A function handle alows you to pass one function to another. f = @(x) x.^2; What is f? ...

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Need help with Exponential Curve fitting
First, plot EVERYTHING. Then if you don't understand what you see, plot something more, or plot it in a different way. load xda...

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ushuffle the matrix elements
a = magic(3) reshape(a(randperm(numel(a))),size(a))

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I want to get the covariance matrix from the Hessian matrix, but fminunc returns non-positive definite Hessian.
Fminunc returns its current estimate of the Hessian, which may not be correct at the optimum, because it will be continuously up...

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how to check whether a vector in a subspace or not?
You want to test if a new vector (not two at a time!) lies in the column space of a matrix V. Here, V is a 6x7 matrix. V=[2 3 1...

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how to code the cirle in the function graph
If you have a point moving along the curve, then you can know the x value of that point. As well, compute y, at that x value. Y...

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Is there a function that does the same thing as the numel function?
There are multiple ways you COULD achieve the same result as numel. Not all of them are good. For example, length ALMOST does th...

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how to find a plane perpendicular to a line?
What you need to understand is a plane is defined by TWO things. The normal vector to the plane, AND a point on the plane. That ...

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The easiest way to learn matlab?
The easiest way? Why must there always be an easy way to truly learn something well, developing some real expertise at it? Have ...

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How Can I Plot Multiple Points Without Mathlab Joining Them?
Plot is a simple tool. If you give it no direction at all about the line or markers, then it connects the points with a line, an...

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Vector operation giving complex numbers
You don't necessarily fix it, except by understanding the mathematics of what you are doing. blog_mean = 0.5000; blog_var = 0....

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Fitting a data with the best fit
As others have said, there is no magical way to know what is the "best" fitting model for such a problem. If you lack any model ...

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How can I find X for given Y value in a fitted curve. I have a non- linear equation of 6th order.
There are more digits in those numbers as estimated. Just using numbers accurate to 4 digits is far too low for a 6th degree pol...

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How to increase precision in this case?
Take it from here: vpa(exp(sym(1)),500) Now just process the digits. Or I think I have something on the order of a million di...

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Plotting a 1D function by hovering on a 2D plot
We all want things we cannot easily have. For example, I would very much want to see world peace. Will I ever see it? Probably n...

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how to debug the non-working of real() function?
When you get an error, don't just tell us that something is not working. Tell us the error message. The COMPLETE, error message,...

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Symbolic equation simplification output, such as x/y from two equations
If you don't know what umax is, where would it go? What do you hope to see here as a result? You are computing the ratio, u0/uma...

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How to run a while loop 1000 times
You use a for loop when you know how many iterations you will need. So I'm not sure why you want to use a while loop for a speci...

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How to create a 2D reverse matrix
Since you are willing to use tools like fliplr (as opposed to flip. Anyway, fliplr and flipud are more descriptive, so I kind o...

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Convex set: Finding the A and b matrices from Ax=b when the points of the convex set is known.
@Matt J has a set of tools for working with such objects. https://www.mathworks.com/matlabcentral/fileexchange/30892-analyze-n-...

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Calculating exponentials using only addition?
Why in the name of the gods of computing would you possibly want to do this? Seriously? Not homework? A simple waste of CPU time...

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