Answered
Calculating model error
Even though you may THINK your data is good, the problem surely lies in your model. That it is a new device is not even relevant...

15 Tage ago | 0

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finding vector from an equation
There is no solution. Except for possibly a trivial solution. And with some effort, I can prove that does not exist. norm(g(...

16 Tage ago | 0

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Solving (non-linear equation) for a single unknown?
syms are a set of tools written to solve symbolic problems. fzero is a tool to solve numerical problems. The gray area between i...

17 Tage ago | 0

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How to make one plot comparing two solutions of of a function?
One of several ways... Plot one solution. Issue the command: hold on Plot the second solution The second plot will now appea...

18 Tage ago | 0

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Answered
Looking for a very fast root finding method in Matlab
Symbolic methods (vpasolve) are NEVER efficient. But all you have is a rational polynomial. The roots of a rational polynomial...

20 Tage ago | 0

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using fimplicit function to plot
As an alternative to the use of fimplicit, you can simply think of this as a contour plot. That is essentially all fimplicit doe...

20 Tage ago | 1

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Fit a function to the given data y(x) and extrapolate for y(0)
This is a LONG way to extrapolate. (Need I post, yet again, the Mark Twain quote about the dangers of extrapolation?) The point...

20 Tage ago | 2

Answered
Convex polygon partitioning in MATLAB
No, there (still) is no solution in MATLAB for this. You could write it however. If you do, then post it on the file exchange. I...

21 Tage ago | 0

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Modulus of a fraction
I assume you are talking about the ring of integers modulo 5. In that case, 33/4 can be thought af as 33 times the mulitplicativ...

21 Tage ago | 0

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Please tell about Delaunay triangulation
In three dimensions, a triangulation will be composed of tetrahedrae, or we could call them 4-simplexes. So each piece will have...

21 Tage ago | 0

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fixed point Iterative method for finding root of an equation
To understand fixed point iteration, we need to know why and when it will diverge. When does it converge? For some problems, the...

22 Tage ago | 1

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Answered
How to find all solutions to a system of two nonlinear equations?
Here is the rub - you are in trouble IF you really want to find ALL solutions of a system of totally general nonlinear equations...

23 Tage ago | 1

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Answered
inverse matrix calculation problem
You need to understand that the matrix a=[1 2 3;4 5 6;7 8 9] is singular. Therefore it has no inverse. You may as well have s...

24 Tage ago | 0

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Matlab code for fractions
Confusing question. Do you know the value of s? s = 7 s = 7 >> 1.5/s ans = 0.214285714285714 >> format rat...

25 Tage ago | 1

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Direction between points from [0,360]
The function atan2d gives angles that are from -180 to 180. Not a problem. This works: mod(atan2d(y,x),360) But you want the a...

27 Tage ago | 2

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Answered
PLEASE HELP ME CONVERT THIS EQUATION TO MATLAB CODE
Well, you did make an effort, and it was pretty close. But did you read my response? Did you read the help for tand and cosd? W...

27 Tage ago | 0

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Answered
Exponential Piecewise function creation.
A spline is not a piecewise exponential function, so using spline directly would be a waste of time, IF you truly need a piecewi...

27 Tage ago | 1

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Answered
minimum value of one inequality
This is just mathematics. r = 0.001; s = 7; n ALWAYS appears as 2^(-n/2). So calling that number x, first write the problem ...

28 Tage ago | 4

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Answered
Generate random sequence number with condition
I think you still do not appreciate that you cannot just say something is "random" and not define the distribution. For exampl...

29 Tage ago | 1

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error using cross (A and B must have at least one dimension of length 3.)
I'm not sure what you want in terms of a 25000 dimensional cross produt between two vectors. What do you think it means? After a...

29 Tage ago | 1

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Answered
Diagonalising a Skew-Symmetric Matrix
Matrices that are defective will not have a complete set of eigenvectors. https://en.wikipedia.org/wiki/Defective_matrix " In...

29 Tage ago | 0

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Molecules on flat surface by using the package of Atomistic Topology Operations
Without more carefully reading the help for the code you are using, when I go to that link, it describes Box_dim as a variable. ...

30 Tage ago | 0

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Taylor polynomial of a not infinitely differentiable function.
Your question has absolutely nothing to do with MATLAB, but you seem to have made some effort. So I will point out that you may ...

etwa ein Monat ago | 1

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Answered
Numerical integration over (0, x1)
If t is unknown, then you need to use symbolic tools to do the integration. syms x t K = 1/((exp(0.014342/(x * t)) - 1)) * (1/...

etwa ein Monat ago | 1

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Answered
How can i compute an interpolated curve?
You don't provide the actual data. But you are asking to do something which is trivially easy for the eye to do, more difficult ...

etwa ein Monat ago | 1

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Answered
how can I draw half circle in matlab ?
Sigh. You DID make an effort. It is not even a terrible solution, though what you did will not work, since it will at best be a ...

etwa ein Monat ago | 2

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Answered
linprog cannot find solution
While you claim a solution exists, initially, I sincerely wonder if it truly does. I may learn differently by the time I am done...

etwa ein Monat ago | 1

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How to Run PSO with Real Data
You can't. That is, the optimal is just the optimal value at each point in your sample. You cannot do better than that, at least...

etwa ein Monat ago | 0

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How to solve for x in an sin equation?
No. There are INFINITELY many solutions. So you cannot say you want the OTHER solution. You can simply enough find a positive so...

etwa ein Monat ago | 0

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Answered
linearly independent eigen vectors
And for some strange reason, you think that eig as applied to a diagonal matrix does not produce a set of independent eigenvecto...

etwa ein Monat ago | 0

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