zdbtf2(3) on Linux
The text 5d536e97b266, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody), Debian 2.2 (Potato) shipped it. The page shows this text now.
compute an LU factorization of a real m-by-n band matrix A without using partial pivoting with row interchanges