Hessenberg solution MATLAB code.

这个代码主要是有产生正交基的功能，同时产生一个上Hessenberg矩阵-This code is generated mainly orthogonal basis functions, while producing an upper Hessenberg matrix

Gram-Schmidt QR分解 Householder QR 分解 Given-Rotation QR 分解 Fast Given-Rotation QR分解 Upper Hessenberg矩阵 -Gram-Schmidt QR decomposition Householder QR decomposition Given-Rotation QR decomposition Fast Given-Rotation QR decomposition Upper Hess