# Questions tagged [numerics]

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### Lapack++ for QR algorithm

I have recently started using Lapack++ which I found convenient for my programming purpose, in general. Now, I need to solve a matrix using QR algorithm. I've searched the user manual and I found a ...
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### Solving PDE with spatial and temporal derivatives on left hand side

I wish to solve an equation of the form, $$\frac{\partial}{\partial t} \left( \frac{\partial \phi}{\partial x} \right) = -\frac{\partial}{\partial x}(\mathcal{F})$$ for the variable $\phi$ (e.g. ...
740 views

### Need an example of convection-dominated problem to test on FreeFEM++

Can you all give me (at least) one example about convection-dominated problem in order that I can test it (them) on FreeFEM++. If possible, please give me specific examples (it/they contain(s) full ...
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### Can you give me a detailed description of (spetral) deferred correction method?

I have just read "Accelerating the convergence of spectral deferred correction methods". The link is here: http://www.unc.edu/~junjia/papers/sdcgmres.pdf‎. But I wonder how to understand deferred ...
175 views

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### What's the state of the art in parallel ODE methods?

I'm currently looking into parallel methods for ODE integration. There is a lot of new and old literature out there describing a wide range of approaches, but I haven't found any recent surveys or ...
230 views