Updated multi_normal_cholesky with optimization for non-autodiff covariance (Issue #2438)
Updated multi_normal_cholesky with optimization for non-autodiff covariance (Issue #2438)

stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math