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| I recently tried to QRDecomposition the following matrix QRinput = { {0.009826785535338169`, 0.008256655213562824`, 0.23496656662777898`, 0.0358164610814019`, -0.0321839377786013`}, {0.0071722245494631656`, -0.015518584863216923`,... |
| Many thanks for your reply. I think my main problem is not from generating the base with Permutations. This computation was done within 0.7 second. But after put the base in SparseArray, it quickly ran out of all computer's memories. However,... |