https://blog.youkuaiyun.com/Hethzzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/Hethz/article/details/163539242https://blog.youkuaiyun.com/Hethz/article/details/163539242HethzSat, 08 Aug 2026 16:23:17 +0800 未知数（超定方程组）所以最小的奇异值不等于 0，只是很小。我们取它对应的右奇异向量作为最小二乘意义下的最优解。]]>https://blog.youkuaiyun.com/Hethz/article/details/163541864https://blog.youkuaiyun.com/Hethz/article/details/163541864HethzThu, 06 Aug 2026 19:07:00 +0800https://blog.youkuaiyun.com/Hethz/article/details/80423497https://blog.youkuaiyun.com/Hethz/article/details/80423497HethzWed, 23 May 2018 17:46:46 +0800