Re: [R] problems with constrained optimization

Bad starting value. Try c(3/5,4/5) On Aug 19, 2013, at 1:33 PM, wrote: > I tried ti run a simple example with function solnp() from Rsolnp: find > max(x+y) on a unit circle x*x+y*y=1. The answer should be x=y=1/sqrt(2) > with max=sqrt(2). > > Here are my code and results > > #

[R] problems with constrained optimization

I tried ti run a simple example with function solnp() from Rsolnp: find max(x+y) on a unit circle x*x+y*y=1. The answer should be x=y=1/sqrt(2) with max=sqrt(2). Here are my code and results > # test Rsolnp > library(Rsolnp) > fn1 <- function(x)