source:
proiecte/pmake3d/make3d_original/Make3dSingleImageStanford_version0.1/third_party/lightspeed/logdet.m
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1 | function y = logdet(A) |
2 | % log(det(A)) where A is positive-definite. |
3 | % This is faster and more stable than using log(det(A)). |
4 | |
5 | % Written by Tom Minka |
6 | % (c) Microsoft Corporation. All rights reserved. |
7 | |
8 | U = chol(A); |
9 | y = 2*sum(log(diag(U))); |
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