Community Profile # Vira Roy

Last seen: 3 días ago Active since 2019

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Question

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...

3 días ago | 1 answer | 0

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Question

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...

5 meses ago | 1 answer | 0

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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...

5 meses ago | 1 answer | 0

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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...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 1 answer | 0

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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...

más de 1 año ago | 1 answer | 0

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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 ...

más de 1 año ago | 1 answer | 0

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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. ...

casi 2 años ago | 0 answers | 0

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Question

Numerical Integration from -Inf to Inf
Problem: I have the following integral which i need to evaluate numerically. ...

casi 2 años ago | 1 answer | 0

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Question

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...

casi 2 años ago | 1 answer | 0

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Question

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 ...

casi 2 años ago | 2 answers | 0