Hi, all! I'm trying to create a wrapper for Eigen library. Almost all functions are already done, but I have a problem with EigenDecomposition. Unfortunately, I never used this functions and do not clearly understand what it implements.
Eigen library has an EigenSolver for those tasks http://eigen.tuxfamily.org/dox/classEigen_1_1EigenSolver.html I tried to get all values from that solver and compare with results, what Wm3 gives. It is completely different. Here is the source matrix: -26.8141 20.0536 -37.6382 -17.0536 -4.37217 13.4546 39.0891 8.34892 -21.6416 ======================= wm3: tRot: -0.698021 -0.0166317 -0.715884 0.339616 -0.887829 -0.310515 -0.630419 -0.459872 0.625372 tDiag: -70.5641 0 0 0 2.97262 0 0 0 14.7635 ======================= Eigen: eigenvalues: (-26.91,42.69) (-26.91,-42.69) (1,0) eigenvectors: (-0.117,0.6961) (-0.117,-0.6961) (0.0598,0) (-0.2973,-0.08855) (-0.2973,0.08855) (0.8986,0) (0.6308,0.08732) (0.6308,-0.08732) (0.4346,0) pseudoEigenvalueMatrix: -26.91 42.69 0 -42.69 -26.91 0 0 0 1 pseudoEigenvectors: -0.1654 0.9844 0.0598 -0.4204 -0.1252 0.8986 0.8921 0.1235 0.4346 ======================= Can anybody give an advice, how to solve it? Seems, values are completely different. Eigen is a fast library with SSE2/SSE3 optimization. It is maintained. Even Blender is going to move to this library http://wiki.blender.org/index.php/User:Moguri/BGE_Eigen2 Hope YADE will get a benefit to moving to this library. Thanks! ______________________________ Anton Gladkyy
_______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
