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Vira Roy
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Research Scholar at IIT Kharagpur.
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Question
Plotting the content of huge matrix.
Problem: I have a huge 449x10001 dimension matrix and want to make a scatter plot from that. While for loop works good enough fo...
environ 2 ans il y a | 1 réponse | 0
1
réponseQuestion
Manipulating a multidimensional array.
PROBLEM: I have managed to create a multidimensional array storing eigenvectors of a hamiltonian. Now I want to manipulate the a...
plus de 2 ans il y a | 1 réponse | 0
1
réponseQuestion
Energy eigenvalues plot of a Hamiltonian(Weyl)
Question: I have a Hamiltonian which I have to construct in a meshgrid and then plot the energy eigenvalues to get a surf plot. ...
plus de 2 ans il y a | 1 réponse | 0
1
réponseQuestion
Matrix form for a square lattice arrangement.
Question: I want to have a matrix form for hopping between nearest points on a square lattice. My Attempt: To start and explai...
presque 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
Matrix form for creation and annihilation operator with spins.
This might be little geared towards physics but if anyone can help, it would so much helpful for me. So basically I want the mat...
presque 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
Comparing the entries of matrix in pairs
Problem: I have a matrix A (of n by m dimension) which for this example is 10 by 3. Now I want to compare the entries of the ma...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Generation of a basis vector following a constraint.
Problem: I Want to generate a set of basis vectors which follows the constraint . While I can do that as seen from the below wo...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Solving a system of differential equations using ODE45 by switching between two functions depending upon the solution obtained in last iteration.
Problem: I have a system of two coupled differential equations but i want to put an conditional statement so that depending upon...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
3 dimensional plotting by varying the initial conditions
I have a set of four differential equations(DE) and I want to see how one of them varies with the other two. I can solve the equ...
environ 4 ans il y a | 1 réponse | 0
1
réponseQuestion
3D Phase portrait for a set of differential equations
I have a set of three differential equations and I want to make a phase portrait of them. I have some idea of using quiver or pl...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Solving system of Non-linear Equations graphically
Problem Statement: I want to solve a set of equations graphically by plotting their graphs and looking at the interesection. I k...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Eigenvalues of a Matrix for a mesh of values and 3D plot.
Problem: Here is what i want to do. I need to construct an Hamiltonian matrix of dimension 2 by 2, then diagonalise it and find ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Plotting of null surfaces and Warning: Matrix is singular to working precision.
Problem: I have the following three sets of equation which i need to plot as planes in 3D system. ...
plus de 4 ans il y a | 1 réponse | 0
0
réponseQuestion
Numerical Integration from -Inf to Inf
Problem: I have the following integral which i need to evaluate numerically. ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Executing a function in iterations
Problem Statement: I have a system of differential equations in which i need to run a particular function for n iterations using...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Adding a piecewise time dependent term in system of differential equation
Problem Statement: I have a system of differential equation and out of which few has time dependent coefficients and in my case ...
presque 5 ans il y a | 2 réponses | 1
2
réponsesQuestion
Data fitting to the solution of coupled differential equation with all the different parameters.
So here is my problem. The general idea is that, I have a set of data for growth (n) and time(t) which i need to fit to the coup...
presque 5 ans il y a | 2 réponses | 0