www.gusucode.com > 用matlab仿真0到9十个数字的语音识别源码程序 > Speech-Recogenition/logdet.m
function y = logdet(A) % log(det(A)) where A is positive-definite. % This is faster and more stable than using log(det(A)). % From Tom Minka's lightspeed toolbox U = chol(A); y = 2*sum(log(diag(U)));