Hi Matt, If you are using the ModifiedArnoldi driver, the Residual after each iteration is shown in the *.evl file, for example, -- Iteration = 10, H(k+1, k) = 1.2317e-01 Magnitude Angle Growth Frequency Residual EV: 0 1.0000e+00 0.0000e+00 1.0701e-08 0.0000e+00 2.8913e-07 EV: 1 7.1131e-01 0.0000e+00 -3.4064e-01 0.0000e+00 6.8432e-05 Cheers Ankang 发件人:"Matt Duran" <matt.duran60@gmail.com> 发送时间:2021-03-15 08:33:45 (星期一) 收件人: Nektar-users@imperial.ac.uk 抄送: 主题: [Nektar-users] Residuals Stability Simulation This email from matt.duran60@gmail.com originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list<https://spam.ic.ac.uk/SpamConsole/Senders.aspx> to disable email stamping for this address. Hello, I was running a stability simulation using the IncNavierStokesSolver and was wondering if there was some way to check or display the residuals after each iteration. Thank you for your time, Matt Duran Mechanical and Aerospace Engineering University of Central Florida