So at REPL I typed the following julia> using Polynomials julia> p=Poly([5,-3,-2,-2,1,1]) Poly(5 - 3*x - 2*x^2 - 2*x^3 + x^4 + x^5) julia> dp=polyder(p) Poly(-3 - 4*x - 6*x^2 + 4*x^3 + 5*x^4) julia> function newtonIteration(p,dp,x) return x-p(x)/dp(x) end newtonIteration (gener…

You can use global x inside the loop to declare that you are referring to the global variable x, otherwise the for loop introduces a new local variable x. But a better solution all around is just to put your code into a function: function solve() x = newtonIteration(x, ...) for i in 1:10 …

I get variable not defined error in a trivial example

General Usage

gmouts October 15, 2019, 2:10am 3

Oh, I see. This is happening now. It is kind of a pain.

Thanks!

Topic		Replies	Views
What's wrong here, why getting UndefVarError? New to Julia question	1	892	January 25, 2019
"UndefVarError" in loop New to Julia	2	3612	January 17, 2019
X not defined error, even though it is? General Usage	5	8612	February 12, 2019
ERROR: LoadError: UndefVarError: fTerm1 not defined New to Julia	2	506	February 18, 2019
UndefVarError for some variables New to Julia	4	1327	June 25, 2019

I get variable not defined error in a trivial example

Related topics