down vote
favorite

Ivgot some not-standart problem the SelfAdjointEigenSolver by doc in eigen is faster and more accurate then EigenSolver, but for me is too much accurate, the EigenSolver is better for me, but my matrix is symmetric so I can use Self-adjoint method...CAn I insome way reduce the accurency of this compute?

I Found some int m_maxIterations constant, but I must set this to lower level or higher? to be on the same level like in EigenSolver (in accurency)

http://eigen.tuxfamily.org/dox/classEig ... olver.html