Timeline for do numerical integration with fixed abscissas
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 12, 2011 at 1:29 | comment | added | Robert Israel | You might map these to uniformly spaced abscissas by the transformation $t = \sqrt{x^2/\delta^2 - a}$. | |
| Aug 11, 2011 at 20:09 | comment | added | jackj | @J. M. : sorry for the long delay in responding. My abscissas look like $\delta\sqrt{a+n^2}$ where $a$ is "small" and $n$ is an integer. | |
| Aug 7, 2011 at 9:28 | comment | added | J. M. isn't a mathematician | @jackj: Right, so probably we could give better suggestions if you'd mention what those "fixed abscissas" look like... | |
| Aug 5, 2011 at 18:19 | comment | added | jackj | @Robert Israel: the problem I was trying to solve is precisely as you stated it. Thanks for the answer. So, essentially, many small-power polynomials are better than one large-power polynomial. What I plan to do is use the algorithm J.M. mentioned in each subinterval. | |
| Aug 5, 2011 at 18:17 | vote | accept | jackj | ||
| Aug 5, 2011 at 0:16 | history | answered | Robert Israel | CC BY-SA 3.0 |