spline is almost always better.
Lagrange or spline (interp2)
2 次查看(过去 30 天)
显示 更早的评论
Hi,
I am working on a numerical calculation where I use spectral methods to find the flow profile. Although I can use cut-offs around 50*50 for 2D calculations. After having my velocity profile , I have been told that I can use an interpolation method to have velocity profile other than my grid points. In my calculation I am using non-uniform girds. So my data is not uniformly spaced. I wonder which one is a better way to interpolate my velocity profile. I know that if I use Lagrange polynomial I am going to use one polynomial for all my points. And in spline it is piece-wise. But I am not sure if it is piecewise linear for higher orders ?
Thank you
0 个评论
采纳的回答
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Splines 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!