PRO Regulator
Voltage regulator repair and services of models of Basler, Delco, EM, and GE.
http://www.proreg.net

California Linear Devices, Inc.
California Linear Devices high force advanced linear motors, sometimes called linear motors, linear actuators, linear drives, or linear servos, are designed to meet industrial applications like automation, robotics, material testing, packaging, pumping, welding, machine tool, stamping or tufting.
http://www.calinear.com/

Del-Tron Precision, Inc.
manufacturer of linear bearings, linear ball slides, linear crossed roller slides, linear positioners & multiaxis stages. buy online, download CAD drawings.
http://www.deltron.com

Warner Linear
Warner Electric is a provider of industrial clutch and brake products to industry.
http://www.warnerlinear.com/

Germany - Telecoms and Postal Regulator
Federal Network Agency for Electricity, Gas, Telecommunications, Post and Railway
http://www.bundesnetzagentur.de/enid/4a2febdfce81c30908ba031ee62cf1ae,0/xn.html

Software by P.B. Stark and Coauthors
Bvls.f solves least-squares problems with bounds on the variables. Qr.f computes QR decompositions in a stable way. Sbl1.f finds bounds on linear functionals of an n-vector subject to an l1 constraint on the misfit to a set of linear relations, and linear inequality constraints on the variables. Sbvq.f finds bounds on linear functionals of an n-vector subject to a quadratic constraint on the misfit to a set of linear relations, and linear inequality constraints on the variables.
http://128.32.135.2/~stark/Code/

Macron Dynamics, Inc.
Linear actuators from Macron are guaranteed for life. Macron offers standard and custom linear motion products and engineering of custom automation and mechanical motion systems.
http://www.macrondynamics.com

Linear Complexity: A Literature Survey
The linear complexity (LC) of a sequence is the size in bits of the shortest linear feedback shift register (LFSR) which can produce that sequence. The measure speaks to the difficulty of generating, and perhaps analyzing, a particular sequence.
http://www.ciphersbyritter.com/RES/LINCOMPL.HTM

LAPACK -- Linear Algebra PACKage
written in Fortran77; provides routines for solving systems of simultaneous linear equations, least-squares solutions of linear systems of equations, eigenvalue problems, and singular value problems.
http://netlib2.cs.utk.edu/lapack/

Home of GLPK (GNU Linear Programming Kit)
The GLPK (GNU Linear Programming Kit) package is intended for solving large-scale linear programming (LP), mixed integer programming (MIP), and other related problems.
http://www.gnu.org/software/glpk/glpk.html