How to get Solver type when performing \ operation

I am solving a least squares system of equations with x=A\b. Matrix A should be a positive semi-definite sparse matrix that needs to be solved with Cholesky.

However, at the inital step it has a negative eigenvalue and Matlab switch solver internally in order to find a solution. After this initial step, all the eigenvalues switch to positve and the system is finally positive semi-definite, I think that here Cholesky takes place.

Is there anyway to see what is the solver that Matlab is using when performing the \ operation?

[Mario Malic]

See mldivide documentation, there's an algorithm shown there.

[digiam]

I saw the algorithm, but I would like to see which one has been picked in order to solve the system for each iteration

[Stephen23]

https://www.mathworks.com/matlabcentral/answers/251343-how-to-determine-which-algorithm-mldivide-a-b-uses

https://www.mathworks.com/matlabcentral/answers/85847-how-can-i-find-out-what-algorithm-mldivide-is-using