For reasons unknown, Microsoft has never documented the MessageBoxTimeout API located in user32.dll so here it is for those seeking a Message Box that times out and auto closes if the user does not respond to it first.
一般实矩阵的奇异值分解,利用豪斯赫尔德变换及变形QR算法对一般实矩阵进行奇异值分解。-A general real matrix singular value decomposition, the use of house Herder transformation and deformation of a general real matrix QR algorithm for singular value decomposition.