Here is the output of each command.
pi@raspberrypi ~ $ sudo apt-get update
Hit
http://archive.raspberrypi.org wheezy Release.gpg
Hit
http://archive.raspberrypi.org wheezy Release
Hit
http://http.debian.net wheezy Release.gpg
Hit
http://archive.raspberrypi.org wheezy/main armel Packages
Hit
http://http.debian.net wheezy Release
Hit
http://http.debian.net wheezy/main armel Packages
Hit
http://http.debian.net wheezy/contrib armel Packages
Hit
http://http.debian.net wheezy/contrib Translation-en
Hit
http://http.debian.net wheezy/non-free armel Packages
Hit
http://http.debian.net wheezy/main Translation-en
Ign
http://archive.raspberrypi.org wheezy/main Translation-en_GB
Hit
http://http.debian.net wheezy/non-free Translation-en
Ign
http://archive.raspberrypi.org wheezy/main Translation-en
Reading package lists... Done
pi@raspberrypi ~ $ sudo apt-get install wolfram-engine
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package wolfram-engine
One thing I noticed from the other post is that I am using the soft float version. Perhaps the package is not available for the soft float version?
pi@raspberrypi ~ $ uname -a
Linux raspberrypi 3.6.11+ #538 PREEMPT Fri Aug 30 20:42:08 BST 2013 armv6l GNU/Linux