PartiTek SDK PartiTek Software Inc. is a professional image processing and barcode software development company that produces the SDK to encode & decode PDF417, QR Code, Data Matrix . By using PartiTek software, our users have successfully lever

QR Code是一种高效压缩的二维码，能够用二维矩阵编码各种符号，广泛的永远物品的自动识别和物品的生产和定位过程中，这份QR code中文标准可以帮助对二维码感兴趣的朋友很好的实现二维码。-QR Code is a highly compressed two-dimensional code, can use two-dimensional matrix code symbols, is always a wide range of automatic identification of goo

Finding the eigenvalues and eigenvectors of a symmetric matrix The algorithm finds eigen pairs of a symmetric matrix by reducing it to tridiagonal form and using the QL/QR algorithm.