# Calculating Energy Costs - mathjs with variables

**URL:** <https://community.homey.app/t/calculating-energy-costs-mathjs-with-variables/46881>\
**Category:** Questions & Help\
**Created:** [April 30, 2021, 5:51am UTC](https://community.homey.app/t/calculating-energy-costs-mathjs-with-variables/46881 "2021-04-30T05:51:51Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\
**Post date:** [April 30, 2021, 3:04pm UTC](https://community.homey.app/t/calculating-energy-costs-mathjs-with-variables/46881/4 "2021-04-30T15:04:40Z")

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> [@Metatron](#):
>
> I have searched the forum - found nothing.

Someone made [some really nice posts](https://community.homey.app/t/get-a-notification-when-the-washingmachine-is-ready/9372) about this .

> [@Metatron](#):
>
> (Please not only screenshots, which don’t show me how to get this!)

It’s more then that!

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_[View the full topic](https://community.homey.app/t/calculating-energy-costs-mathjs-with-variables/46881)._