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rbf_fd ====== Finite Difference Approximation based on Gaussian Radial Basis Function. Uses Gaussian RBF-QR algorithm in case of ill-conditioned weight computation matrix. How to use: ----------- 1. Download the files from 'rbf_fd' folder 2. run test_main Currently supports only 2D functions. Reference: 1) O. Davydov, D.T. Oanh, On the optimal shape parameter for Gaussian radial basis function finite difference approximation of the Poisson equation, Comput. Math. Appl. 62 (2011) 2143–2161 2) G.E. Fasshauer, M.J. McCourt, Stable evaluation of Gaussian RBF interpolants, SIAM J. Sci. Comput. 34 (2) (2012) A737–A762. Contact: jrathin1@hawk.iit.edu Note: This is an Experimental code. May not be complete, and could have bugs.
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