考虑方程组: (a)用高斯消去法解此方程组(用四位小数计算); (b)用列主元消去法解上述方程组并且与(a)比较结果。
正确答案:
(a)高斯消去法解得x1=-0.1670,x2=-1.6504,x3=2.1967,x4=-0.4468;
(b)列主元消去法解得x1=-0.181919,x2=-1.66303,x3=2.21723,x4=-0.446704。
(b)列主元消去法解得x1=-0.181919,x2=-1.66303,x3=2.21723,x4=-0.446704。
答案解析:有
![](/editor/images/201705/qrcode_for_gh_573e2a458573_258.jpg)
微信扫一扫手机做题