source:
proiecte/pmake3d/make3d_original/Make3dSingleImageStanford_version0.1/third_party/lightspeed/inv_posdef.m
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1 | function x = inv_posdef(A) |
2 | % INV_POSDEF Invert positive definite matrix. |
3 | % INV_POSDEF(A) is like INV(A) but faster and more numerically stable. |
4 | |
5 | U = chol(A); |
6 | iU = inv_triu(U); |
7 | x = iU*iU'; |
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