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I keep this fuzzy function error; "Undefined function or variable 'fuzzy'."
In keeping with a question about the fuzzy toolbox, my response is an oldie, but moldy. That is, do you actually have that toolb...

alrededor de 2 años hace | 0

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lines that meet each other
I think you have what is really a simple question. But you need to formulate it in mathematics, and that is often difficult with...

alrededor de 2 años hace | 1

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problem in curve fitting using summation of sine functions
I'll post this as a separate answer, so as to not get it lost in the comments, and since I will show you how to solve it as a tr...

alrededor de 2 años hace | 0

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problem in curve fitting using summation of sine functions
Ok. Thank you for the data. The plot does help a lot actually. At first glance, the plot of the fit itself looks quite reasonabl...

alrededor de 2 años hace | 0

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Why R square value is coming negative ?
Actually, not. R^2 can be negative for two potential reasons. If the R^2 was computed incorrectly. If the model is worse than...

alrededor de 2 años hace | 0

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I am trying to plot a graph of two variables z1 and z2 versus t. but for some values of t I am getting z2 values negative in a graph. How to make these z2 values zero?
Another approach... z2 = randn(1,7) z2 = max(z2,0)

alrededor de 2 años hace | 0

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ODE45 giving complex solution unexpectedly
This seems clear. The only way in your code you can generate complex numbers is by raising a negative number to a fractional pow...

alrededor de 2 años hace | 2

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optimization doesn't carry out using fgoalattain
Sigh. So many times this same question gets asked. :) Clearly not your fault of course, given the number of others who trip over...

alrededor de 2 años hace | 1

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What is the most cost effective way for an individual researcher to purchase fast compute for deep learning tasks?
No matter what, I would be looking towards a desktop machine. Then you get the advantage of adequate fans to keep those cores hu...

alrededor de 2 años hace | 0

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some problem about the discrete of the first derivative operator
It is difficult to know, not without reading the article. Is the D matrix as shown just a typo that got by the proofreaders? Ve...

alrededor de 2 años hace | 1

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How to recover original raw signal from filtered results given filter coefficiencies?
Is it possible? NO. Sorry. Mathematics does not give you a trash can, where this operation can be undone. Information content wa...

alrededor de 2 años hace | 0

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Inverse of a symmetric matrix consisting of submatrices is desired.
This makes little sense as you write it, AND it will be essentially impossible to perform in MATLAB using symbolic tools. syms C...

alrededor de 2 años hace | 0

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Solving equations using Newton-Raphson method for 7 equations with 7 variables
As @Torsten said, this is a LINEAR system of equations. Nothing nonlinear needed. In fact, you can use many tools in MATLAB to t...

alrededor de 2 años hace | 1

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Need help with a system non-linear equation with three variables
Simple. Use lsqnonlin. There will almsot certainly be no exact solution. All you can do is find a parameter set that minimizes ...

alrededor de 2 años hace | 1

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read text file to get complex number
Read the files in as two vectors. There are many tools that can read a text file. Then add them, multiplying the second by sqrt...

alrededor de 2 años hace | 0

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GA does not solve problems with integer and equality constraints
The coupling of equality constraints with integer constraints makes a significant problem. For example, suppose I wanted to solv...

alrededor de 2 años hace | 0

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problem with low infinite number
They only look the same, to 4 decimal places. format short x = 1.23456789; y = 1.23456987; [x,y] They certainly look the s...

alrededor de 2 años hace | 0

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How to display this whole data simultaneously?
What can you do? This will mainly be in your MATLAB settings, first, under the command window tab. Here, you can control how man...

alrededor de 2 años hace | 0

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Fittype issue: unrealistic results and problems with upper and lower bounds
Star pointed much out to you, but I want to say a few extra things, and the fit he got was relative crap due to the terrible cho...

alrededor de 2 años hace | 2

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integration in matlab plot
You CANNOT use trapz. Despite the fact that another poster has done so, that does not yield a result up to 4.7. If you have no d...

alrededor de 2 años hace | 3

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2023b Compatibility with 2019b code?
Is there a limit? No limit is ever published. The first is a warning, NOT an error message. It is intended to tell you there wil...

alrededor de 2 años hace | 1

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Find Area under the curve as a non negative
You don't show your data, so I need to make something up, and I'm guessing what your problem is, because your question is confus...

alrededor de 2 años hace | 0

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Problem with non-Zero Matrix Appearing Zero in Command Window and in Imagesc
They are still (non-zero) numbers. Just too small to display in the chosen format. If you close your eyes, the world does not di...

alrededor de 2 años hace | 0

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str2double with long string seems to give wrong answer
Do you appreciate that str2double will convert the number to a DOUBLE PRECISION number? Of course it must, as why would it conve...

alrededor de 2 años hace | 3

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How to use for and if statements together?
Can you compute the overall mean? Surely you know how to use the function mean. If not, can you compute the overall mean? How wo...

alrededor de 2 años hace | 0

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Why Matlab is always giving the same error while putting comment to reply in quesiton?
MATLAB is not doing anything of the sort. In fact, that is not a response from MATLAB at all, but from the web site, from MATLAB...

alrededor de 2 años hace | 0

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Solve a system of linear equations
I am confused. You say that you know how to solve the problem using lsqnonneg. So just use it! n = 30; Y = rand(30,n); S = r...

alrededor de 2 años hace | 0

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generating every possible trajectory in a workspace
Um, no. There are infinitely many possible trajectories, if we consider the variables as continuous. But even if all variables w...

alrededor de 2 años hace | 0

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How do I request participation or sponsorship from MathWorks on behalf of my social organization at my University?
Answers is not the correct place to ask your question. Instead, I would contact support directly. Possibly through this link: h...

alrededor de 2 años hace | 0

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Solving tridiagonal Matlab matrix using Gauss siedel ( can't use other method )
Why in the name of god and little green apples are you using Gauss-Seidel for this? (I can only assume this is a homework assign...

alrededor de 2 años hace | 1

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