Extended Real Numbers

By adding two new symbols, namely ∞ and -∞, to the original real numbers ℝ, we get the extended real numbers. Some things become easier, when considering the extended real numbers! *I am sorry for any incorrect pronunciation of English words* ---------------------------------------------------------------------------------------------------- +++Support me and get my crossproduct-guide as a reward+++ ► My short-guide about the crossproduct is only 6 Dollars and teaches you to solve any linear equation system using the crossproduct in R^3 on around 10 pages. ► Get the guide by supporting me on Patreon! Please take a look at: http://www.patreon.com/fortymoo ► You can also purchase it on my Website! Just hit the "Buy Now" PayPal-Button: https://forty-moo.github.io/Kategorien/mathe/mathe_texte/kreuzprodukt_kurz.html Only with your help I will be able to keep working on mathematical stuff and producing videos!