# Making a calculator - floating point errors? **URL:** \ **Category:** Community & Industry Discussion\ **Tags:** error, math, variables, float, unreal-engine, question\ **Created:** [June 25, 2016, 4:45pm UTC](https://forums.unrealengine.com/t/making-a-calculator-floating-point-errors/362000 "2016-06-25T16:45:18Z")\ **Posts on this page:** 1\ **Showing post:** 10
**Author:** ![Krxtopher](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Krxtopher](https://forums.unrealengine.com/u/Krxtopher)\ **Post date:** [June 27, 2016, 12:17am UTC](https://forums.unrealengine.com/t/making-a-calculator-floating-point-errors/362000/10 "2016-06-27T00:17:52Z")
My guess is that you won’t have an issue if you do your calculations at the C++ level. Even if you don’t know C++ it’s fairly easy to create a custom function in C++ that you can use as a node in your blueprints. I don’t quite remember how to do it, but I’ve done it before (and I don’t consider myself very knowledgeable about C++). Here are some Wiki posts that may help guide you through the process: > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — ue4community.wiki! You will be able to find content from the official... This one even has an example of a float addition node: > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — ue4community.wiki! You will be able to find content from the official... --- _[View the full topic](https://forums.unrealengine.com/t/making-a-calculator-floating-point-errors/362000)._