# Cholesky factorization for slightly non-Hermitian matrices

**URL:** <https://discourse.julialang.org/t/cholesky-factorization-for-slightly-non-hermitian-matrices/20063>\
**Category:** Numerics\
**Tags:** linearalgebra\
**Created:** [January 24, 2019, 9:19pm UTC](https://discourse.julialang.org/t/cholesky-factorization-for-slightly-non-hermitian-matrices/20063 "2019-01-24T21:19:41Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![caldwellshane](https://avatars.discourse-cdn.com/v4/letter/c/ed655f/32.png) [@caldwellshane](https://discourse.julialang.org/u/caldwellshane)\
**Post date:** [January 24, 2019, 10:33pm UTC](https://discourse.julialang.org/t/cholesky-factorization-for-slightly-non-hermitian-matrices/20063/2 "2019-01-24T22:33:06Z")

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Having created this, I now realize the same issue is posted in other domains:

- [Is this a bug with Cholesky?](https://discourse.julialang.org/t/is-this-a-bug-with-cholesky/16970)
- [Multivariate Normal with Positive Semi-Definite Covariance Matrix](https://discourse.julialang.org/t/multivariate-normal-with-positive-semi-definite-covariance-matrix/3029)  
In one of those, the suggestion is made that `cholesky` itself should be modified to make the requirement more obvious.

It looks like this is not yet tracked in GitHub, though. I’m trying to figure out whether to report this there, rather than here on the Discourse page.

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_[View the full topic](https://discourse.julialang.org/t/cholesky-factorization-for-slightly-non-hermitian-matrices/20063)._