# ForwardDiff - slowed down by Real vs. Float operations

**URL:** <https://discourse.julialang.org/t/forwarddiff-slowed-down-by-real-vs-float-operations/36987>\
**Category:** General Usage\
**Tags:** question, type\
**Created:** [April 3, 2020, 9:10pm UTC](https://discourse.julialang.org/t/forwarddiff-slowed-down-by-real-vs-float-operations/36987 "2020-04-03T21:10:51Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![danicaratelli](https://avatars.discourse-cdn.com/v4/letter/d/90db22/32.png) [@danicaratelli](https://discourse.julialang.org/u/danicaratelli)\
**Post date:** [April 3, 2020, 9:51pm UTC](https://discourse.julialang.org/t/forwarddiff-slowed-down-by-real-vs-float-operations/36987/6 "2020-04-03T21:51:41Z")

</div>

Hi Sukera,

yes, the problem is with ForwardDiff, it seems to be a common problem (see [here](https://discourse.julialang.org/t/dual-forwarddiff-type-error-when-jump-tries-autodiff-user-defined-function/25639/6)).

Best,

---

_[View the full topic](https://discourse.julialang.org/t/forwarddiff-slowed-down-by-real-vs-float-operations/36987)._