pub fn min_eigenvalue_symmetric<T, D, S>(matrix: &SquareMatrix<T, D, S>) -> T where T: RealField, D: Dim + DimSub<U1>, S: Storage<T, D, D>, DefaultAllocator: Allocator<T, D, D> + Allocator<T, DimDiff<D, U1>> + Allocator<T, D>,