libatlas-3.so software package provides virtual package provided by libatlas-base-dev, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libatlas-3.so
libatlas-3.so is installed in your system.
Make ensure the libatlas-3.so package were installed using the commands given below,
$ sudo dpkg-query -l | grep libatlas-3.so*
You will get with libatlas-3.so package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Virtual packages |
| Package | libatlas-3.so |
| Version | |
| Description | virtual package provided by libatlas-base-dev |
| Sub Section | virtual |