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Find column number for every row in matrix
Simple. One line. A = randi([-5,5],[10,7]) [~,col] = max(A > 0,[],2) Why does it work? A > 0 returns an array that is true (1...

mehr als 3 Jahre vor | 0

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Does the eig() function return normalize eigen vector (unit length)?
Yes. V is normalized to have unit 2-norm, at least in common cases. Surely you could have checked that? A = magic(5); [V,D] = ...

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How to change the independent variable?
plot(x,f)

mehr als 3 Jahre vor | 0

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Solving differential equation in series general solution
I just showed you how to solve the problem, for two unknown constants. Of course, your question here involves an initial value a...

mehr als 3 Jahre vor | 0

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How to solve differential equation of series general solution
Assuming I typed in that line correctly... syms y(x) S = dsolve(8*x^2*diff(y,2)+10*x*diff(y)+(x-1)*y==0,'ExpansionPoint',0, 'O...

mehr als 3 Jahre vor | 1

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Inquiry about Neural Network Structure for Lane Keeping Assist Example
Answers is not the MATLAB support team. Answers is purely volunteer supported. We have no acess to the information you would wan...

mehr als 3 Jahre vor | 0

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Simple loop with equation problem
Looking at your code... Learn to use semi-colons at the end of your lines. This avoids crap being dumped into the command windo...

mehr als 3 Jahre vor | 0

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How to plot ellipse using contour function?
I'm a little confused. You DID draw ellipses. It seems the goal was not to draw the ellipses you drew though. Essentially, as yo...

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Problems accepting integer values with power and algebraic symbols using inputdlg
You could just learn to use the standard scientific notation. So 123e4, which represents 123*10^4. 123e4 Or, you could see tha...

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не удалось получить пробную версию
I would advise you to contact customer service. Answers is not an official line to The MathWorks, so we cannot tell you what is ...

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Go on my Nationale Education license after the Easter holidays
(I removed your license number from your question.) Regardless, Answers is not official customer support. Answers is just a foru...

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What is the complexity of intlinprog
This is a question with seemingly no answer as posed. Why not? Because intlinprog will use many different methods, depending on ...

mehr als 3 Jahre vor | 0

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Solving for Variables contained an interval
syms x y = (sin(x) * (2* cos(x) - 1)) / (1 + 2 * cos(x)); xsol = solve(y == 0) There are only three primary solutions. xso...

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I have to perform integration of very large equation in Loop
Should every possible expression you write down, long, or short, have an analytical integral? int seems to be unable to do so. O...

mehr als 3 Jahre vor | 1

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Using a variable shift to match up odd and even rows that are displaced within an image.
Many unclear things here. Ok, its mostly your image that to me was unclear. :) But then, I need new eyeglasses. Seriously, I se...

mehr als 3 Jahre vor | 1

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page-wise matrix determinant or eigenvalues
@Henry Brinkerhoff seems to have found a semi-viable solution, in the form of pagesvd. It will be valid, within a factor of -1. ...

mehr als 3 Jahre vor | 0

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Finding linear combination of two vectors such as every element is positive
Hmm. Is this homework? I wonder, but I have learned not to trust that students won't post homework, and this is a cute problem. ...

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z=f(x,y) and w=f(x,y). I am trying to reverse the table to get x=f(z,w) and y=f(z,w).
In general, this is often impossible. That is so for good reasons too. The problem is, IF you have any instances where the resp...

mehr als 3 Jahre vor | 1

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Is it possible to access the software after annual license expire?
It is not clear what RoadRunner is or what it does. If you don't have a valid (current) MATLAB license, then you cannot "use" a...

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Force coefficients in multivariate and multiple regression
There has been much unsaid here that I think you don't understand. Given these models: u = p*q^4*x/y v = p*q^3*x*y wher...

mehr als 3 Jahre vor | 0

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solving 4 equations with 4 unknowns
Because there are two solutions. For example, how many solutions would you expect to see for the problem syms x xsol = solve(...

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How to create a random signal with desired frequency?
This seems simple enough. Create the signal, at the dominant frequency. That is just going to be a sine wave. Surely you can do...

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i am studing the course "introduction to image processing through coursera platform, i updated the course dead lines however the matlab expired, i ask you help to getaccesback
I'm sorry, but there is nothing we can do. Answers is not MathWorks customer service. You should contact the provider of the co...

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Does dsolve benefit from multiple cores?
In general, no. No tools in the symbolic toolbox that I know of are currently set up to employ multiple cores. I might have miss...

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Left division with partially known coefficient
If you have this relation, y=0.5*x/(d*K)+x^2/(d*K)^2 where d is known but K unknown, then write it as: y = (0.5/d)*(x/...

mehr als 3 Jahre vor | 0

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Integral of matrix determinant
For this specific problem, I might just suggest that the determinant of an upper triangular matrix is just the product of the di...

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Absurd result using 'integral2' with non-"centered" functions
Why should you be surprised? Integral and integral2 are tools that look at your function as a complete black box. A black box i...

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Using colormap to graph function of three variables
Could you? I suppose, in theory, you could. But it would not make a lot of sense. The problem is, suppose you have all different...

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I want to make an identity matrix
These are starting to look like homework questions. Did you not read the answer to the last question you asked? You could not u...

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I want to show r^2 and the poly1 ec on the plot
Read the help for fit! Look at the second argument it can return. You don't give me enough information (what is dtr, for example...

mehr als 3 Jahre vor | 0