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Devanjith Fonseka


Last seen: 10 days ago Active since 2018

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How can I solve coupled nonlinear hyperbolic equations?
I am trying to solve the two coupled bvp equations listed as below: where and are constants. I don't think pdepe can solve th...

2 months ago | 1 answer | 0

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answer

Question


Creative way to create a Matlab array from a textfile with multiple headers.
I am trying to parse a molecular dynamics dump file which has headers printed periodically. Between two successive headers, I ha...

2 years ago | 1 answer | 0

1

answer

Question


Solving a system of nonlinear equations with unorganized unknowns?
Ideally when using fsolve, my entire solution vector will be unknown. However my unknowns are broken down into 2 vectors x and r...

3 years ago | 1 answer | 0

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answer

Question


Integrating over a domain which has a singularity?
So I have to numerically integrate a function which is of the form over a spherical element (i.e r->[0,R],phi->[0,2pi] etc). My...

4 years ago | 0 answers | 0

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How do i extract these arrays from a .m file?
I need to get the matrices but I'm unsure how to proceed. The file in question is attached as a picture. Thanks!

5 years ago | 1 answer | 0

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Question


How do I plot the output of fmincon when I'm already using options twice; once to include gradient using optimoptions and the next to plot using optiset?
So as said in the question, I have to define options twice but I can't use them concurrently. How can I prevent conflict between...

5 years ago | 1 answer | 0

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answer

Question


How do I plot contours of a symbolic function at a specific heigh?
So I'm trying to implement Newton's method for optimization and I don't know how to plot the contour at each step vector. I thin...

5 years ago | 0 answers | 0

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answers