[交流] 病态矩阵 已有2人参与

2楼: Originally posted by opticspcs at 2011-10-28 19:23:29:
inversion是求逆矩阵的意思，没有转置的意思
沙发

3楼: Originally posted by ahulz at 2011-10-28 20:46:36:
对病态矩阵有了解吗，给解释下第一个问题哦

1楼: Originally posted by ahulz at 2011-10-26 09:15:17:
病态矩阵的转置可以抑制扰动吗？
原文如下：
the mere fact that the severely ill-posed matrix
inversion keeps the perturbation from “blowing up” may seem a little unexpected。

5楼: Originally posted by openyoureye at 2011-10-29 09:28:33:
keeps the perturbation from “blowing up”
keep from  句型，使扰动免于 失控（放太大了）。
其实就是说病态矩阵求逆对扰动很敏感，一点小数值扰动，就能使结果错误差别很大。

5楼: Originally posted by openyoureye at 2011-10-29 09:28:33:
keeps the perturbation from “blowing up”
keep from  句型，使扰动免于 失控（放太大了）。
其实就是说病态矩阵求逆对扰动很敏感，一点小数值扰动，就能使结果错误差别很大。