# A slightly question about EvalDivide function

**URL:** <https://openfhe.discourse.group/t/a-slightly-question-about-evaldivide-function/1624>\
**Category:** Library Questions\
**Tags:** questions\
**Created:** [October 7, 2024, 1:47pm UTC](https://openfhe.discourse.group/t/a-slightly-question-about-evaldivide-function/1624 "2024-10-07T13:47:05Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![narger](https://yyz1.discourse-cdn.com/flex031/user_avatar/openfhe.discourse.group/narger/32/420_2.png) [@narger](https://openfhe.discourse.group/u/narger)\
**Post date:** [October 8, 2024, 9:29am UTC](https://openfhe.discourse.group/t/a-slightly-question-about-evaldivide-function/1624/2 "2024-10-08T09:29:36Z")

</div>

Just my 2 cents here: perhaps it is not the right choice to use [-5,5] as the approximation interval since it contains x=0, where 1/x is not defined.

Plus, the fourth argument of EvalDivide is the polynomial degree, which should be set to a larger value, otherwise you are just creating a line.

I refer you to: [https://openfhe.discourse.group/t/how-to-evaluate-approximate-1-x-function-with-high-precision/](https://openfhe.discourse.group/t/how-to-evaluate-approximate-1-x-function-with-high-precision/)

---

_[View the full topic](https://openfhe.discourse.group/t/a-slightly-question-about-evaldivide-function/1624)._