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Krishna Kumar


IIT Madras

Last seen: 11ヶ月 前 |  2011 年からアクティブ

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Professional Interests: Nonlinear Dynamics, Meshfree methods, Evolutionary Algorithms, Optimization, Structural health monitoring

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unable to solve sybolically.
Why do you declare this?- [x,y] = meshgrid(0:0.5:10, 0:0.5:10); if you are anyway declaring x and y to be symbolic later....

5年以上 前 | 0

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Using a while loop/iterative process to derive a function
The code yields final value of Ei, and you are essentially using Newton's method to solve the eqn. Do you want the code to print...

5年以上 前 | 0

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How to count each element in array
Are you just interested in this? array = [0.5 1 5 2 7 3]; sum=cumsum(array) If you just want add two neighbouring terms, this...

5年以上 前 | 0

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

約11年 前

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SVD
When you do svd of a column matrix, you get 3 matrices [u s v]=svd(X) if X is nx1 vector, u is n*n,s is n*1 and v is 1*1 now...

13年以上 前 | 0

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How do I increase the amount of memory used by MATLAB?
go to start menu(assuming windows), right click on my computer, go to properties, go to advanced tab, click performance options ...

13年以上 前 | 1

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What are the shortcuts for switching between non-adjacent open files in the MATLAB editor
The window menu list all open files. so you can toggle between any file you want without remembering the sequence . alt+W and th...

13年以上 前 | 1

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best way to search date in vector
With the description you've given, seems 'find' will do it fine- x=find(vector==1984). Seems you want to do sth like a loop- ...

13年以上 前 | 0

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GUIDE multiple images and variable handling
The variables can be displayed using sprintf (assign sprintf output to the static text's string property). For plotting the fft...

13年以上 前 | 1

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standard deviation and mean
If you are plotting close values and if the plot's not clear , try change the axes limits so that the variation is clearer

13年以上 前 | 0

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a question about eig() calculating Hermitian matrix
The function could itself check the property of matrix and assign the suitable routine, not a big task of course. If you want ei...

13年以上 前 | 0

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PSO CODE for more than one Equation
Well if you need help in framing the problem, try this: [x y z w] is the parameter vector. Your objective function could be O...

13年以上 前 | 1

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Adding some changes and code rewriting
To get the random numbers within some limits, you can use randn( since you seem to want random distributed values. x= lowerlimi...

13年以上 前 | 0

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What parts of MATLAB would you not miss?
My pick would be obsolete tools like gatool, which can now be accessed via optimtool.

13年以上 前 | 1

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how to display the plots one by one in axes by selecting puhsbutton
see this - http://www.mathworks.com/matlabcentral/answers/10011-displaying-series-of-images-in-an-axes-in-a-gui and http://ww...

13年以上 前 | 0

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Randomly Error - index must be a positive integer or logical
Bugar From a brief review of code, I suppose that Tempopulasi is your population which is passed as input argument to other f...

13年以上 前 | 0

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How to convert row and column vectors of a symmetric matrix to zero if diagonal value is zero?
This would do it without loop- index=find(diag(your_matrix)==0); your_matrix(index,:)=0; your_matrix(:,index)=0;

13年以上 前 | 1

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randomly selection
Do you have those values in a vector. If so, you can do like this- random_chosen=V(randi([min(V) max(V)],1); V=vector_of_inte...

13年以上 前 | 0

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Randomly Error - index must be a positive integer or logical
Bugar, its difficult for us to solve it straightaway, since you didnt mention in which code the error occurs. The error is a com...

13年以上 前 | 0

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Displaying series of images in an axes in a GUI
I got what I wanted from this thread, courtesy 'ImageAnalyst'. The solution is simple and meats my needs. http://www.mathwor...

13年以上 前 | 0

質問


Displaying series of images in an axes in a GUI
Hi all, I have a GUI which has a axes in it apart from other elements. The functions called in callbacks generate di...

13年以上 前 | 3 件の回答 | 0

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sprintf or disp
disp displays the string or variable in the command windoe, whereas sprintf can be used to output the result into a variable, GU...

13年以上 前 | 1

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I need GUI Save As button for an image in a figure please.
You can modify sean de's suggestion by including a pushbutton next to the edit text and calling 'uigetfile' in the push button c...

13年以上 前 | 0