Beantwortet
Decimal and very small values returning zeros
Um, why are you doing this numerically at all??????? With the variable of integration as c, your kernel is: (pi*t)^(-1/2).*...

etwa 4 Jahre vor | 0

Beantwortet
least square fitting for a nonlinear regression.
You show no data, and only a difficult to understand equation, but I am pretty sure what form you are trying to fit. y(t) ...

etwa 4 Jahre vor | 0

Beantwortet
How to solve a system of equations?
pt1, pt2, and pt3 are the equations of the surfaces of three spheres, each wih the same fixed, but unspecified radius. Pick an...

etwa 4 Jahre vor | 0

Beantwortet
How to optimize parameters with dsolve?
You cannot do so. The solution using dsolve has MANY parameters in it that have no assigned value. As far as the use of dsolv...

etwa 4 Jahre vor | 0

Beantwortet
How to convert decimal time to HH:MM:SS
format long g T = now % so the current time in a decimal format The integer part of that time represents days, and above. The ...

etwa 4 Jahre vor | 0

Beantwortet
Integration Help in exponential
Did you try it? Why not make an effort? Surely you can do something. syms t T K(t) = exp(-t^1.3/27.290)*exp(-t/12.724)*t^0.3 ...

etwa 4 Jahre vor | 0

Beantwortet
How to find the factorial of fractional numbers using matlab code?
You CANNOT compute the factorial of a fractional number. Factorials are defined only for integers. HOWEVER... It is true that...

etwa 4 Jahre vor | 2

| akzeptiert

Beantwortet
If your MATLAB licence expires, can you still use datasets created on MATLAB prior to expiration (and saved in non-MATLAB format e.g. Excel) for future research papers?
Unequivocably, yes you can do so. There is no problem with use of such data after your license will expire.

etwa 4 Jahre vor | 0

Beantwortet
Fmincon converged to an infeasible point, I don't know why
I'm sorry, but this code is a bit strange. Ok, wildly strange. Why are you using fmincon? You have no linear inequality constra...

etwa 4 Jahre vor | 0

| akzeptiert

Beantwortet
Should I use EIG or SVD to compute the eigenvalues of a symmetric matrix?
Again, these are just my thoughts as I write them down. I'll possibly fail to get everything answered in here. Such is life. Wh...

etwa 4 Jahre vor | 0

Frage


Should I use EIG or SVD to compute the eigenvalues of a symmetric matrix?
I saw ths question posed as an answer to another question. So I'll pose the question myself, then post my own thoughts as my ans...

etwa 4 Jahre vor | 2 Antworten | 0

2

Antworten

Beantwortet
Mathlab code for euler equation
What is your question? Let me guess, why does my incorrect code not work? Note, I edited your code to make it readable. Having ...

etwa 4 Jahre vor | 1

Beantwortet
Laserbeam reflection points/ path lengths
Why do you need a toolbox? Start with a ray. A line is simply defined by the equation: R(t) = R0 + R*t where R0 is a point...

etwa 4 Jahre vor | 0

Beantwortet
Ploting Intersection point of three circles
Why are you certain that forms the "intersection" point of the three circles? In fact, as the plot shows, there is no point wher...

etwa 4 Jahre vor | 1

| akzeptiert

Beantwortet
How to check and remove outliers when it is Non-normal distribution
z-scores are not a terrible approach. HOWEVER, if you have many outliers, then they will themselves bias the z-scores, making ou...

etwa 4 Jahre vor | 1

Beantwortet
filling area enclosed by multiple curves
No problem (as long as you use a more capable tool), although it appears you have duplicate points. X = load('dataX.txt'); Y =...

etwa 4 Jahre vor | 0

| akzeptiert

Beantwortet
Find minors of a rectangular matrix
https://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer Sadly, it ...

etwa 4 Jahre vor | 1

Beantwortet
finverse for function handle
Does every possible function you write down need to have a functional inverse? Of course not. In fact, it can be proven that fun...

etwa 4 Jahre vor | 1

| akzeptiert

Beantwortet
Error with sinc command
sinc is also present in the symbolic toolbox, though it would not be of use here. You need the signal processing toolbox for the...

etwa 4 Jahre vor | 0

Beantwortet
How to create this matrix ?
It appears the request was to concatenate the two planes of A into one plane, and then concatenate another matrix to the columns...

etwa 4 Jahre vor | 2

| akzeptiert

Beantwortet
sequence of color on a surf plot
Surf plots each grid line, as a BLACK line. The black lines are useful, and help you to see the shape of the surface for smaller...

etwa 4 Jahre vor | 0

| akzeptiert

Beantwortet
why surf function does not show complete data
Um, EXACTLY what is not shown? :) LOOK CAREFULLY at the surface you show. You surfed a 8x5 grid, right? Now, count the lines sh...

etwa 4 Jahre vor | 2

| akzeptiert

Beantwortet
How to find the derivative of one output quantity with respect to another output quantity
Basic calculus. Each module must be a function of SOMETHING else, thu some other parameter. What parameter is controlling them? ...

etwa 4 Jahre vor | 0

Beantwortet
Best Curve-Fitting Function
The "best" solver? Ii is the one you have access to, and the one you know how to use. Fit is easy to use. mdl = fittype('1/(...

etwa 4 Jahre vor | 0

| akzeptiert

Beantwortet
How to perform linear curve fitting based on distance from line instead of residuals
This is the classic total least square problem. Sometimes it is called the errors in variables problem, sometimes known as ortho...

etwa 4 Jahre vor | 0

| akzeptiert

Beantwortet
How do i input this on MATLAB
Assuming that p and q are real numbers, do you understand there will ALWAYS be three solutions to the problem, and that for many...

etwa 4 Jahre vor | 1

Beantwortet
Curve fitting with variance
Why cannot you just use variance for weight? In fact, that is essentially what you DO want to do. The weight on a data point wil...

etwa 4 Jahre vor | 0

Beantwortet
How to take data from multiple variables and store them in one variable?
Essentially, you just need to learn MATLAB. Read the various tutorials you can find. In there you would learn about the various ...

etwa 4 Jahre vor | 0

Beantwortet
PC requirements for running multi-Objective optimization algorithms
Sorry, but this is a question that is far too vague to have a useful answer. You tell us only that as written by you, your code...

etwa 4 Jahre vor | 0

| akzeptiert

Beantwortet
How to findout this equations value
That is impossible, since your equations are not written in unambiguous mathematics. Is e^15b intended to mean exp(15*b)? Is...

etwa 4 Jahre vor | 1

| akzeptiert

Mehr laden