ceres-solver is non-linear least squares problems solver, which contains dense QR and Cholesky factorization for small problems using Eigensparse Cholesky factorization for large sparse problems using SuiteSparse and CXSparsespecialized so…

SuiteSparse contains several packages for sparse non-linear least square systems. As README.txt says, some packages optionally use metis 4.0.1. To use metis, we need to put uncompressed metis directory metis-4.0 in the same directory conta…

sunflower is a good file manager. It has 2 windows and enables tab browsing. The greatest point contrast to double commander is that we can open files by drag & drop files from sunflower to another software.

First tex compilation results a lot of fonts error right after I set-up latex environment on my ubuntu PC using TeX Live. The solution is very easy, I need to install some fonts information by running the following command. sudo apt-get in…

The following command replace the string STR1 with STR2 of every file that is *STR1.rename s/'STR1'/'STR2'/ *STR1 To change file extension .txt to .log, rename s/'.txt'/'.log'/ *.txt

sudo apt-get install libmagick++-dev libmagickcore-dev libmagickwand-dev perlmagick

This post is for activation of Maple installation on Ubuntu. When I tried to activate Maple installation on Ubuntu, I couldn't activate it. Although I re-run the activation script "SOMEWHERE/maple16/bin/activation", I got the message windo…