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Welcome to the relax Wiki.
The community-run support site for relax, a program for the study of molecular dynamics using experimental NMR data.

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News & Updates
Migration to SourceForge	After the Gna! shutdown at the start of 2017, relax has finally in 2019 been fully migrated to the SourceForge infrastructure.
Gna! is permanently shut down!	A migration to another open source infrastructure is planned. This will include web hosting for http://www.nmr-relax.com, source code repositories, bug and other trackers, new reports, download pages, and possible a svn to git conversion.
Tutorial added	Tutorial for sorting data stored as numpy to on-resonance R1rho analysis
Version 4 of relax	With the latest relax release merging in years of developments in the frame order analysis, the major number has been incremented to relax 4.
Tutorial added	Tutorial for manual regarding the relaxation dispersion auto-analysis in the GUI
Tutorial added	Tutorial for R1/R2 Relaxation curve-fitting analysis on varian recorded as fid interleaved
Matplotlib example added	Matplotlib example
Tutorial added	Relaxation dispersion analysis R1_rho recorded on varian
Tutorial added	Relaxation dispersion analysis cpmg fixed time recorded on varian as fid interleaved
Tutorial added	Adding relaxation dispersion models to relax
wiki namespace changed	The wiki is now placed at: http://wiki.nmr-relax.com as of 19 of July 2013
GPL License	The License has been changed to GPL v3.
New Wiki	This is the new wiki

Did you know...
%PAGE% The relaxation dispersion model for no chemical exchange. This if for all SQ CPMG-type data, MMQ CPMG-type data, and R1rho-type data. This model is labelled as No Rex in relax. Parameters The No Rex model has the parameter R₂⁰ or R_1ρ' depending on the data type. Equation for No Exchange in CPMG [math] R_{2,\textrm{eff}} = R_2^0 [/math] Equation for No Exchange in R1rho [math] \mathrm{R}_{1\rho}= \mathrm{R}_1\cos^2\theta + \mathrm{R}_{1\rho}{´} \sin^2\theta [/math] If no R₁ values has been loaded, but the `R1_fit` flag has been turned on, the R₁ will be fitted as well. For data without a loaded offset, (see also relax disp.spin lock offset+field ..→

Random screenshots
relax starting interface The analysis selection wizard Steady-state NOE analysis R1 analysis R2 analysis Model-free analysis The relax controller Spin viewer window Results viewer window Pipe editor window relax prompt window About GUI screen About relax screen