Questions tagged [interpolation]
Interpolation is the process of estimating the values of a function, when the function's values are known only at a particular set of points. Questions on interpolation in one or more dimensions, as well as algorithms for doing so, should have this tag.
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B-Spline basis on a 3D mesh
I need to interpolate some (sparse) data scattered on a 3D manifold mesh. In other words, I have a scattered interpolation problem where the input values are defined for some vertices of the mesh. ...
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Interpolation constant on triangles
There are quite a few references regarding the estimation for the interpolation error for the piece-wise affine finite elements. I find one particular estimate interesting (and useful in my case), ...
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Extending Matlab's pchip to 2D
In The Matlab Guide, chapter 3, section 4, Moler describes a piecewise cubic Hermite interpolator $i$ which
Never leaves the data bounds on each subinterval, e.g. $t \in [t_k, t_{k+1}] \implies i(t) \...
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Nodal functionals in finite element analysis
I have a quintic Hermite basis functions [-1,1] for FEM applications, I wanted to check if it's nodal functionals are proper. Could someone explain nodal functionals in details and give an example of ...
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Quintic Hermite shape functions
I am trying to use quintic Hermite basis functions for FEM applications, could someone please direct me to the general formula that would help me generate quintic Hermite shape functions?
In natural ...
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