Hi, I'm a french student and I need some help for my project. I have to calcul the gradient of the function :
f <- function(x,y) { (1 - x^2) + (y - x^2)^2 } Thanks ! :) -- View this message in context: http://r.789695.n4.nabble.com/gradient-tp4650734.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.