Tagged Questions
6
votes
2answers
137 views
4
votes
1answer
99 views
How to find derivative of a numerical solution, where precision is ambiguous?
I am trying to take the derivative of a numerical solution. I am concerned that the way I'm doing this may be problematic due to numerical error; I think there must be a better way but I'm not very ...
2
votes
2answers
187 views
Problem with setting working precision in NIntegrate
I want to obtain a good numerical approximation (up to 10 decimal place would be ok for me) to an integral:
$$
\int^{\infty}_{0} f(r)r^2dr
$$
I am using the function $f(r)$, which is related to the ...
6
votes
3answers
360 views
Strategies to solve an oscillatory integrand only known numerically
I have an integrand that looks like this:
the details of computation are complicated but I only know the integrand numerically (I use NDSolve to solve second ...
