# Can't understand numerical errors on julia

**URL:** <https://discourse.julialang.org/t/cant-understand-numerical-errors-on-julia/31031>\
**Category:** General Usage\
**Created:** [November 13, 2019, 7:38am UTC](https://discourse.julialang.org/t/cant-understand-numerical-errors-on-julia/31031 "2019-11-13T07:38:31Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [November 13, 2019, 8:15am UTC](https://discourse.julialang.org/t/cant-understand-numerical-errors-on-julia/31031/3 "2019-11-13T08:15:10Z")

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> [@jgidi](#):
>
> How does julia handle the numerical errors, so that my simulation NEVER develops a component along the second dimension?

It is very hard to say much about this in the abstract, without seeing any code. In principle Julia does not do anything special, just IEEE 754, unless you use something like `@fastmath`.

Investing the effort into making an MWE could get you much more specific responses though.

> [@Please read: make it easier to help you](https://discourse.julialang.org/t/psa-make-it-easier-to-help-you/14757):
>
> Welcome to the Julia Discourse! We are enthusiastic about helping Julia programmers, both beginner and experienced. This public service announcement (PSA) outlines best practices when asking for help. Following these points makes it easier for us to help you and more likely you’ll get a prompt, useful answer. Keywords are highlighted to make it easier to refer to specific points. Choose a descriptive title that captures the key part of your question, eg “plots with multiple axes” instead of …

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