# Tagged Questions

Questions on the use of numerical functions NIntegrate and NDSolve.

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### Stop Integration in NDSolve

The following code executes properly for some choices of initial points and parameter c, but fails for other choices. Could the failure be due to computation outside of the defined t, x, and y ranges? ...
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### Numerical integration and interpolation with free parameters [closed]

I hope you'll be able to give me a hand on my question, I'm stuck and don't know how to make it work. First of all, I have a table of data pairs (x,f): ...
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### How to speed up Integration of interpolation function?

I have a list of data, and I interpolate it to a function. Then I need to do an integration with the interpolating function. But I found that the speed is unacceptably slow. My data is here (a little ...
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### Numerical integration over a circle contour [duplicate]

I want to numerically integrate the following function $$f(p) = \frac{1}{2\pi i}\int_{\Gamma}\frac{1}{p}\exp\left(\frac{a^{2}}{2}\frac{1}{p}+\frac{b^{2}}{2}p\right)dp$$ where the contour $\Gamma$ ...
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### NDSolve kernel crash, affected by variable naming

The following isolated example cannot be further simplified much to reproduce a crash. I've already submitted the issue to TechSupport, but it seems this is not an easily reproducible case, so I'm ...
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### Does NDSolve iterate faster in a region where the system being solved is in equilibrium?

I was wondering how exactly the time it takes for NDSolve to iterate through a certain region of the domain depends on the local behaviour of the given system being solved. My guess would be the ...
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### Force NDSolve to use finite difference

How to force NDSolve to use finite difference instead of FEM. I have the following code: ...
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### Boundary conditions for NDSolve

I get the following message: Boundary values may only be specified for one independent variable. Initial values may only be specified at one value of the other independent variable. >> from ...