# UndefVarError: P not defined

**URL:** <https://discourse.julialang.org/t/undefvarerror-p-not-defined/51358>\
**Category:** General Usage\
**Created:** [December 6, 2020, 6:16pm UTC](https://discourse.julialang.org/t/undefvarerror-p-not-defined/51358 "2020-12-06T18:16:57Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ernesto\_Diaz](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ernesto_diaz/32/8289_2.png) [@Ernesto\_Diaz](https://discourse.julialang.org/u/Ernesto_Diaz)\
**Post date:** [December 6, 2020, 6:16pm UTC](https://discourse.julialang.org/t/undefvarerror-p-not-defined/51358/1 "2020-12-06T18:16:57Z")

</div>

qp=0.6

function Plist(xi,qp)

```
   for i=0.001:5:xi

   push!(P,qp*i)

end

return P

```

end

P=Plist(240,qp)

Previous code return:  
UndefVarError: P not defined  
Stracktrace:  
[1]Plist(::Int64, ::Float64) at .\In[12]:5  
[2] top-level scope at In[64]:1

What is wrong?

---

<div class="post-metadata">

**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [December 6, 2020, 6:49pm UTC](https://discourse.julialang.org/t/undefvarerror-p-not-defined/51358/2 "2020-12-06T18:49:32Z")

</div>

`P` doesn’t seem to be defined anywhere before its use in the function.

---

<div class="post-metadata">

**Author:** ![Ernesto\_Diaz](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ernesto_diaz/32/8289_2.png) [@Ernesto\_Diaz](https://discourse.julialang.org/u/Ernesto_Diaz)\
**Post date:** [December 6, 2020, 6:59pm UTC](https://discourse.julialang.org/t/undefvarerror-p-not-defined/51358/3 "2020-12-06T18:59:21Z")

</div>

It’s true. Thank you very much. Problem resolved