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# Vira Roy

##### Last seen: alrededor de 1 mes ago
12 total contributions since 2019

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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...

alrededor de 1 mes ago | 1 answer | 0

### 1

Question

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...

alrededor de 2 meses ago | 1 answer | 0

### 1

Question

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...

alrededor de 1 año ago | 1 answer | 0

### 1

Question

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...

alrededor de 1 año ago | 1 answer | 0

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Question

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...

alrededor de 1 año ago | 1 answer | 0

### 1

Question

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...

alrededor de 1 año ago | 1 answer | 0

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Question

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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Question

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. ...

más de 1 año 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. ...

más de 1 año ago | 1 answer | 0

### 1

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...

más de 1 año ago | 1 answer | 0

### 1

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 ...

más de 1 año ago | 2 answers | 0