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标题: 用高斯消去法求解线性方程组 2X1- X2+3X3 = 2 4X1+2X2+5X3 = 4 ... [打印本页]

作者: 李老师 时间: 2020-4-13 17:21
标题: 用高斯消去法求解线性方程组 2X1- X2+3X3 = 2 4X1+2X2+5X3 = 4 ...
用高斯消去法求解线性方程组
      2X1- X2+3X3 = 2
      4X1+2X2+5X3 = 4
   -3X1+4X2-3X3 = -3

5、用无回代过程消元法求解线性方程组
      2X1- X2+3X3 = 2
      4X1+2X2+5X3 = 4
   -3X1+4X2-3X3 = -3

6、用主元素消元法求解线性方程组
2X1- X2+3X3 = 2
      4X1+2X2+5X3 = 4
   -3X1+4X2-3X3 = -3

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