In this article I will show you how to install DrRacket on Fedora 18 and Fedora 17 Linux Boxes. As you may know, DrRacket is a very popular Scheme Editor and Compiler.

So, this is what you have to do for installing Scheme on your Fedora.
How to install DrRacket on Fedora 18 and Fedora 17:
The first thing you have to do is to create the /etc/yum.repos.d/rpm-sphere.repo file:
$ sudo touch /etc/yum.repos.d/rpm-sphere.repo
Next, paste this lines in the /etc/yum.repos.d/rpm-sphere.repo file you have just created:
[rpm-sphere]
name=RPM Sphere
baseurl=http://download.opensuse.org/repositories/home:/zhonghuaren/Fedora_18/
gpgkey=http://download.opensuse.org/repositories/home:/zhonghuaren/Fedora_18/repodata/repomd.xml.key
enabled=1
gpgcheck=1
Update the system:
$ sudo yum update
Install DrRacket:
$ sudo yum install drracket
This is everything, enjoy.