Editing Grace (plotting tool) (section)

==Features==
Grace can be used from a [[point-and-click]] interface or scripted (using either the built-in programming language or a number of [[language binding]]s). It performs both [[Linear regression|linear]] and [[Nonlinear regression|nonlinear]] [[least-squares]] fitting to arbitrarily complex user-defined functions, with or without constraints. Other analysis tools include [[Fast Fourier transform|FFT]], [[Integral|integration]] and [[derivative|differentiation]], [[spline (mathematics)|splines]], [[interpolation]], and smoothing.<ref>{{cite web|title=Grace at NERSC |url=http://www.nersc.gov/users/software/vis-analytics/grace/ |publisher=NERSC |accessdate=15 February 2013 |url-status=dead |archiveurl=https://web.archive.org/web/20130224204701/http://www.nersc.gov/users/software/vis-analytics/grace/ |archivedate=24 February 2013 }}</ref>