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Imposing boundary conditions to a spline interpolation
First, I need to determine if the constraint set you wish to impose actually makes sense. Have you specified too much informatio...

2年以上前 | 0

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How do you solve a system of 16 nonlinear equations with 16 unknowns ?
Whenever we see a number supplied to FOUR significant digits, we should expect that is not the true value, but only an approxima...

2年以上前 | 1

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How to do bit-wise operations on symbolic variables that may be very long possibly larger than inter 64
Why is there a problem? Just define the numbers as syms. Make sure that you don't make the mistake of computing 2^n as a DOUBLE....

2年以上前 | 0

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Roots of a 4th degree polynomial and plotting a graph
Effectively, you are telling us that one of the coefficients of the polynomial is determined to within some interval. And now yo...

2年以上前 | 0

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What is the Distinction Between Answers and Discussions?
@Paul, your question really is arguably more suitable for a discussion. I'd suggest the rule(s) should be: If it is a question ...

2年以上前 | 2

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How to find all the intersecting points between 4 spheres ?
There will generally be no common point of intersection between all 4 spheres, so where all the spheres intersect. Of course, yo...

2年以上前 | 2

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I got x as a result of the symbolic equation solver!
syms n p1 lambda delta v N F B n=(delta - B*delta + 2*delta*v + (4*B*delta - 4*delta - 8*delta*lambda + 8*delta*p1 - 8*delta*v ...

2年以上前 | 1

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Why more CPU cores makes parallel workers less efficient?
I'll assume the process really can be perfectly parallelized, so that you can break the problem down into multiple fully paralle...

2年以上前 | 0

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How to find the coordinate of the point on (180) contour line when y(max)?
Easy. Use contourc to find that specific contour. It will be a piecewise linear curve. Find the point where y is maximum. That...

2年以上前 | 0

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Fit distribution using moments
This is something commonly done using either the Pearson or Johnson family of distributions. (It has been many years since I loo...

2年以上前 | 0

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Understanding higher dimension in MATLAB
Visualize a vector. For example, the vector V = 1:5 So the numbers 1 through 5, stored in sequence in memory. Got it? rand wil...

2年以上前 | 0

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I am using the symbolic tool box and have generated a number that has over 25,000 digits and would like to store that number in it's entirety onto a disk file.
Is that really an extremely large number? :) Everything is relative. X = sym(17)^20000; Xc = char(X) numel(Xc) Xc is just a ...

2年以上前 | 3

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ANFIS code in matlab
No problem. It appears the anfis function is written in MATLAB itself, and not compiled. If it was compiled code, then no, they ...

2年以上前 | 0

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Problem in mishgrid and contour function
This is not even a probable user error. A CERTAIN user error. You have done something wrong. Nobody knows what, since you have...

2年以上前 | 0

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How to solve Ax=b with some all knowns except some x values
I think you may be missing some very important pieces of information. The example you show is a homogeneous one, where a non-tri...

2年以上前 | 1

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difficulty solving simulataneous equations
You have 3 equations, and you calim to have 4 unknowns. However, you only tell solve that you want to solve for TWO unknowns, ia...

2年以上前 | 0

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How to find the largest cuboid inside a set of points in 3D?
Can a corner of the cube stick out between some of those points? If that is acceptable, you NEED to say so, because it would com...

2年以上前 | 0

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Determine intersection between plane and polyhedron
Um, not too hard, as long as the polyhedron is convex, so perhaps a convex hull. If it is not convex, then it is more difficult....

2年以上前 | 0

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Interpolation schemes that produce positive second derivatives of the interpolant
Are there easy adjustments? Not really. At least not totally trivial. It sounds as if you want an interpolant, NOT an approximan...

2年以上前 | 0

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the size of picture show three data?
A black and white image typically has one channel only. All you need to know is how bright each pixel is. But a color image st...

2年以上前 | 0

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Fast calculate the inverse of a lower triangular matrix
Do not write your own inverse code. Gaussian elimination is great for teaching a student about matrices, but too often they then...

2年以上前 | 0

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Plotting perpendicular lines but they are not perpendicular.
Both @Stephen23 and @Voss have explained the issue perfectly, so I am just adding some additional information to clear things up...

2年以上前 | 2

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How to find the equation of the data available of a graph?
I'm sorry, but high order polynomials (as suggested by @akshatsood) are always a bad idea. You will run into numerical problems ...

2年以上前 | 3

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Integral with limit variable
Multiple ways to solve this. First the easy, just as a numerical integration using a trapeziodal rule. beta=2.1; eta=1500; t=...

2年以上前 | 0

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Finding a common step value between an array of non-uniformly distributed points
This is generally impossible to do exactly, IF your numbers are floating point. Let me repeat, effectively impossible. If your n...

2年以上前 | 3

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matlab strange result for mean of single vs double
You need to understand what you did, AND you need to understand floating point arithmetic. a=single([99 100 65 101]'+zeros(4,51...

2年以上前 | 3

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find similar numbers within a matrix
Lots of good answers posted. I did not see this one. load M.mat size(M) The array M has 61 rows. P = [-3.4970900e+01 -2.02...

2年以上前 | 1

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Is there any way to convert the matlab code into a flow chart
As @Teresa Hubscher-Younger said, this is not for Stateflow to solve, not the purpose of that tool. Instead, you might try the M...

2年以上前 | 0

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can any one help me to find empirical equation with 3 or 4 parameters for this data, And of course with different parameters for each curve
Sadly, while you want some magical form for each of these curves, that is not so easy to find. Essentially, it looks like each o...

2年以上前 | 1

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Questions about operation A\B
The only time when there would/should ever be any significant difference is if the matrix is singular. And in that case, there w...

2年以上前 | 1