1)   .NET Matrix Library 2.2.5000.72
The Bluebit .NET Matrix Library provides classes for object-oriented algebra. Solves systems of simultaneous linear equations, least-squares solutions of linear systems of equations, eigenvalues and eigenvectors problems, and singular value problems.
matrix, vector, math, eigenvalues, eigenvalue, eigenvectors, eigenvector, qr, cholesky, lu,

 2)   Matrix ActiveX Component 3.1
Matrix ActiveX Component provides for all basic matrix operations plus LU, Cholesky, QR and Singular Value (SVD) decompositions, Eigenvalue and Eigenvector computation for symmetric and non symmetric matrices. Version 3.1 supports complex matrices.
matrix, math, eigenvalues, eigenvalue, eigenvectors, eigenvector, qr, cholesky, lu, decomposition,

 3)   J4L-BarCode for AJAX/Javascript 1.0
J4L Barcode for Javascript and AJAX is a set of scripts that create barcodes. The barcodes will be created in the client (browser), there is no need for programming in the server.
javascript, AJAX, barcode, barcoding, barcodes, pdf417, datamatrix, qrcode, qr, aztec,

 4)   J4L-BarCode, Java edition 2.0
Java component that support all major 1D and 2D barcode types. It can be used as applet, in JSP, servlet, Webservice, in mobile devices (J2ME and Android), Jasper reports, PDF files (Apache FOP) and more.
java, applet, barcode, barcoding, barcodes, webservice, FOP, PDF, jasper, pdf417,