Answered
Double Integral of a function that contains factorials
This is not really a question about MATLAB, but of mathematics in general. The problem with your integral is factorials are n...

23 days ago | 0

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Answered
How to interpret the outputs of the function "runstest.m"?
This is a problem of appreciating the terminology, and the double negative way things get worded. Do two negatives make a positi...

24 days ago | 3

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Answered
Diffrence between cubic spline (csaps) and smoothing spline in curve fitting toolbox
If you read the docs somewhere below fittype, you will find this comment: Note The smoothing spline algorithm is based o...

25 days ago | 1

Answered
Does wblrnd use the inverse tranform method to generate random numbers?
The answer to many questions about MATLAB, is to just read the code. So, I did this... type wblrnd Then look at the code...

26 days ago | 0

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Answered
Answers given as equation
Do you mean this? vpa(SurfaceAreaOfASphere) ans = 1256.6370614359172953850573533118*[ft]^2

26 days ago | 2

Answered
parallel computing sig problem
So, you simply cannot put those 500 lines of code inside a function? Or if not as a function, as a script m-file? There is ab...

26 days ago | 0

Answered
Computing Divergence of a vector field numerically
First, divergence computes a NUMERICAL approximation to the gradients necessary. It has no clue as to the real derivatives, or t...

27 days ago | 0

Answered
Generate poisson numbers which sum a certain value?
I frequently see this happen, where someone wants to generate random numbers, subject to some constraint, that essentially inval...

29 days ago | 2

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Answered
Numerically integrate over function that gives out a matrix
While integral offers the option of integrating an array valued function, integral2 does not. However, nothing makes a loop a...

3 months ago | 0

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Answered
How can i find the first inersection point of tow functions?
You can't use the intersect function to find the intersection of two curves. Just because the name is similar does not mean it w...

3 months ago | 0

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Answered
Integrating bivariate normal distribution in polar coordinates efficiently
Why do you need to re-express the PDF in polar form? It is one line of code to convert polar form into cartesian form to do the ...

3 months ago | 0

Answered
How Do I Create/Fix My Code For Collatz Conjecture Using A For Or While Loop?
I'm not sure what assume(x>0) has to do with anything, because you are working with the variable n. But why have you not just...

3 months ago | 0

Answered
Power function fitting with my data
Since you have not posted your data, it is difficult to help you very much. But... You can use polyfit to fit the linear curv...

3 months ago | 0

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Answered
ToolBox for Zernike polynomial surface_Fitting
You can find tools for evaluation of Zernike polynomials on the file exchange, here: <https://www.mathworks.com/matlabcentral...

3 months ago | 0

Answered
Integrating a curve fitted with Sgolay
1. You are not fitting your data using sgolayfilt. All that does is try to reduce the noise in the data, assuming the underlying...

3 months ago | 0

Answered
How to create a symbolic expression with a string like '5.01e-7*x2 - 5.01e-7 + (-9*x1 + 4)/x1'?
str2sym( '5.01e-7*x2 - 5.01e-7 + (-9*x1 + 4)/x1') ans = 0.000000501*x2 - (9*x1 - 4)/x1 - 0.000000501

3 months ago | 0

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Answered
Matlab 2018a with parallel computing too slow
Parallel computing need not always gain. Why not? Because MATLAB already automatically does some multi-threading when it thinks ...

3 months ago | 0

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Why is ScatteredInterpolant (linear) returning a value far outside of input data?
You are making a major error here in what you are trying to do. plot3(inX,inY,inZ,'bo') box on grid on Now, rotate...

3 months ago | 1

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Answered
How to obtain integer solutions only with fsolve?
Far too late to answer this, but worth explaining how to solve it. Intlinprog, has been suggested is not a viable solution, b...

3 months ago | 0

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Answered
Numerical evaluation of integral gives warning message
Ignoring the fact that you cannot just factor out -1 from that term in the integral, and get what you think you got, we have the...

3 months ago | 0

Answered
First-order optimality of system of non-linear equations is not converging to 0
A basic presumption of fsolve is that the objective equations to be solved are continuous and differentiable. Your equations ALL...

3 months ago | 0

Answered
Functions vs scripts: speed
Option B is a REALLY bad programming style. It is slow, as you found out. It prevents MATLAB from optimizing your code for effic...

3 months ago | 2

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Hot to create a matrix with elements which moves to right as row increases
There are MANY ways to solve this. I'm not at all sure what the final dimension of the matrix is expected to be. Is it 100x100? ...

3 months ago | 2

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Answered
Function of the interpolation function
Um, you said interpolation, but you never said what kind of interpolation was used. The crystal ball is very foggy today, so I a...

3 months ago | 0

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outputs of generated code are NAN
The crystal ball is so foggy today. Strange, because it is a nice, sunny day here. Sorry, but we cannot read your mind, nor c...

3 months ago | 0

Answered
Is it possible to partition a curve and fit it using different funtions
Yes. If you know what you are doing. But that means you need to learn about how to use piecewise functions. You need to learn ab...

3 months ago | 0

Answered
Hi.I have been trying a lot to "find" the answer. I still can not get it.
The error? Yours, in making an assumption about floating point arithmetic, and how numbers are stored. x1=(0:0.001:50 )'; ...

3 months ago | 0

Answered
Am I allowed to write functions that have names of matlab functions (copyright)?
I am not a lawyer. But I would argue that it is the code that matters, and the code that has a copyright, which will reside in t...

3 months ago | 0

Answered
What's the difference between gammainc & igamma? Which one should I use to compute incomplete upper gamma function? Which one is scaled??
igamma lives in the stats toolbox. It gives you an upper tail integral. gammainc lives in MATLAB proper. gammainc is scaled. ...

3 months ago | 2

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