> On 1 Feb 2019, at 12:41, malika yassa via R-help <r-help@r-project.org> wrote:
>
> Please, can you help me I have a equation to solve by newton method but I can
> not do it
> for example
>
> f<-function(x) {
>
>
> 2+X2-X3=0}
> this equation have un solution in [1,2]
> is there a function in R for solve it or i have to programme it
>
What is the relation between the function argument x and variables X2 and X3?
As it stands this is incomprehensible. The function argument x is not used
anywhere in the function body.
Berend Hasselman
>
>
>
> [[alternative HTML version deleted]]
>
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