• 2022-07-26
    用高斯消去法解下列线性方程组:1)[tex=9.0x3.929]7EJHVCtO2IWq3KpdB+jQsnDdCa2k5HvWbdOruPhLiJtyhmge9cdISuiLlJtsPmFteMSdpRZXK7X7K7oQkmhUDyIGvgiSHTenmkoZR3lEpJOSGNCUHrhHd+uCWyGiKQP6oDdy15OHAnwu810vsJbzKpT1vH2GEghHwD1Ohnb3Hrs=[/tex]注:用列主元高斯消去法,对于 [tex=2.357x1.143]qMmLG3OT6I+UYFeehawKuA==[/tex] 步消元,每一步消元之前均需选主元素。