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The sufficient and necessary conditon of fmincon funciton can find out the global optimal solution but not some other local optimal solutions
I'm sorry, but no. Fmincon CANNOT be assured of always finding a global solution. In fact, I can think of many ways it will fail...

約2年前 | 1

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Answers Not Running Code?
Now working. Many thanks for fixing it. As a test to verify that claim, I leave you with this complex mathematical computation. ...

約2年前 | 0

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find the way to transfer 2D projection back to 3D
The projection you used into the nullspace was correct, AND robust. However the inverse operation is less easy to perform. You n...

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How to solve multiple equation with several conditions in it?
Is chi known? If not, then chi is one of your unknowns, and it must be solved for. Regardless, there will be infinitely many sol...

約2年前 | 0

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case sensitivity issue of "load" function
You cannot change the behavior of existing supplied code. If it works that way, then it does, and there is no way to tell load t...

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I need to input a matrix of size 2x2 which is something like this A= [ 1 - 1.8629z-1 + 0.8669z-2 , 0 ; 0 , 1 -1.8695z-1 + 0.8737z- 2 ] which is a 2x2 Matrix
So do it. What is the problem? If z is known, then just type it in, pretty much as written. Do you know how to raise a number ...

約2年前 | 0

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MATLAB code of intersection
I answered exactly this question only recently. So your class must be all getting this homework assignment. https://www.mathwor...

約2年前 | 0

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Is MATLAB 100% reliable? Do the users need to modify it according to their usage? I need this for my presentation in class. Thank you!
I'm sorry, but this question makes no sense at all. Define what you mean by "reliable" in this context. Are you asking if it wil...

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Precision Difference Between MATLAB and Simulink MATLAB Function
No. This is not a difference in the precision used. Both tools will use double preicsion arithmetic to store all numbers. Inste...

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gamma function with two parameters
There is no common definition of a two parameter gamma "function" in mathematics. So whatever you are asking, you need to be mor...

約2年前 | 0

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How to get x value for a given y value in a interp1 figure?
You need to understand there is no unique solution. So asking for THE value of x has no answer, since there are two possible sol...

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3D plot with the Earth in the center
With the mapping toolbox, easy. Without the mapping toolbox, more difficult. Nothing is impossible, of course. But lacking the ...

約2年前 | 0

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How to draw a map of a country and mark the location of an object on it?
Do you have the mapping toolbox? https://www.mathworks.com/products/mapping.html Your question is easy to answer with that too...

約2年前 | 0

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I want to download Matlab 2019or 2021 or 2020 for my macOs monterey 12.6
There is a button that allows you to download previous releases. On the upper right of the page as I recall. HOWEVER, it also l...

約2年前 | 0

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How can I subtract elements in an array from the element before it.
help diff

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How to write in Matlab a matrix whose coefficients depend on a real alpha parameter
Many ways. It seems unclear exactly what is your goal. And what are x and y? Are they just a list of numbers? Or a sequence as l...

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how to build a magic matrix manually of even n*n matrix?
@the cyclist is correct, that this is purely an algorithm question. But you did write code. Anyway, I'd start here, if I were y...

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How do I plot the cross sectional area and centroid of an I-Beam using pgon ?
The funny thing is, your code was indeed essentially correct. You just started out wrongly. x = [ 0 0 1 1 2 2 3 3 4 4...

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I got Inf when calculating 13959^475, how can I solve this problem?
Yes, you can use syms. However, you do NOT want to compute a huge power using syms directly, and THEN compute a modulus. Just co...

約2年前 | 0

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Error With Least Squares Approximation
There are two serious issues in what you are doing, making this apprach, sadly, truly numerical nonsense. You think you did some...

約2年前 | 0

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I unable to get trial version. Can you help?
No. We cannot help you. We are not your local customer support representatives! Answers is just a volunteer forum. We have no ...

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Initial Conditions for Newton Raphson Method for 9 equations 9 unknowns problem set
Not every system of equations you will write down has a solution. Starting from a random position does not insure you will find...

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Average Optimization using GA or intlinprog algorithms
This is not an optimization problem. You only look at it in that way. It is purely a problem of a Monte Carlo simulation, to com...

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MacOS(14.0) and Matlab 2014a format problem
R2014a does not run on that recent of the Mac OS. It is not supported there, and in fact, I am surprised it even comes that clos...

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Can multiple versions of MATLAB be installed on the same Windows PC using the same license number for code compatibility?"
Yes. I frequently have multiple releases on my machine. It is occasionally useful, but the older releases are usually there in m...

約2年前 | 0

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how to use lsqcurvefit on a function that contain a series
You only have ONE data point. xdata=420; ydata=0.1; So only ONE piece of information! How do you intend to estimate TWO param...

約2年前 | 0

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how does this work some clarification
Honestly, this Cody answer is one of the reasons why I think Cody is seriously flawed. It encourages people to write obscene cod...

約2年前 | 1

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Alternatives to syms?
Well, it is pretty old, but you COULD just use my sympoly toolbox. ;-) It is on the FEX for free download. (Pretty old by now, b...

約2年前 | 2

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Critical points of level curves
But what question about MATLAB are you asking? You have plotted the surface. and the level curves. And your code was correct to ...

約2年前 | 0

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Having -1 as part of the result when factoring a polynomial
You should understand that a factorization is not unique when you get down to a factor of -1. Yes, it may seem strange, but even...

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