Re: [R] gradient

2012-11-25 Thread izymaths
Come on man ! I have to make the algorithm CG-Steihaug it's not easy. And I need the gradient of this function to make my algorithm works for functions f : R^2 -> R (my algorithm already works for functions f : R -> R) Please. -- View this message in context: http://r.789695.n4.nabble.com/gra

[R] gradient

2012-11-25 Thread izymaths
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