Hi Manoel,

Try this:

x<-seq(-10, 10, l=100)
plot(x^2,type="l",col=2,ylim=range(x^2,x^5),ylab='f(x)')
points(x^5,type="l",col=4)
legend('topleft',c(expression(x^2),expression(x^5)),col=c(2,4),lty=1)

See ?plot

HTH,

Jorge



On Wed, Apr 23, 2008 at 11:23 PM, Manoel Santos <manoelsantos666@gmail.com>
wrote:

> i wanna compare functions
> to be simple , let's say i want x^2  and x^5 in same plot ( it's not the
> case but if i get it i'll understand for others  )
> how i do it?
>
> x<-seq(-10, 10, l=100)
> > plot(x^2)
> and?
> tks
>
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