In[3313]:=
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Subscript[F, 1, 2, 4, 5, 10, 11, 13, 14] = ({
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{0},
{0},
{0},
{0},
{0},
{0},
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{0},
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});
LinearSolve[Subscript[K, 1, 2, 4, 5, 10, 11, 13, 14], Subscript[F, 1, \
2, 4, 5, 10, 11, 13, 14]]
\:6B63\:5728\:8BA1\:7B97In[3313]:= LinearSolve::luc: Result for LinearSolve of badly conditioned matrix {{7.242*10^6,0.,0.,0.,-355.,-355.,-71000.,0.,0.,0.,-355.,0.,-71000.,0.,0.,0.,0.,-355.,0.,0.,0.,0.,0.,0.},{0.,7.242*10^6,0.,355.,0.,355.,0.,-71000.,0.,355.,0.,0.,0.,-7.1*10^6,0.,0.,0.,0.,0.,0.,0.,0.,0.,0.},<<21>>,{0.,0.,0.,0.,0.,0.,-355.,0.,0.,0.,0.,1.18333,0.,0.,0.,0.,0.,-0.385038,355.,355.,0.,0.,0.,5.11837}} may contain significant numerical errors.
Out[3315]= {{1.40039*10^-7}, {-2.44378*10^-10}, {3.75161*10^-8}, \
{-2.65259*10^-6}, {0.0000100417}, {6.83927*10^-6}, {5.42568*10^-10}, \
{-1.64248*10^-8}, {3.75242*10^-8}, {-2.48661*10^-6}, {9.99723*10^-6}, \
{1.27463*10^-6}, {1.5238*10^-12}, {-1.29788*10^-14}, \
{6.12921*10^-15}, {-2.1489*10^-6}, {1.00724*10^-6}, {0.000012917}, \
{-2.24884*10^-10}, {-1.64302*10^-8}, {1.4228*10^-10}, \
{-2.6606*10^-6}, {5.44763*10^-7}, {1.86981*10^-6}}
出现这个问题，怎么解决：
LinearSolve::luc: Result for LinearSolve of badly conditioned matrix {{7.242*10^6,0.,0.,0.,-355.,-355.,-71000.,0.,0.,0.,-355.,0.,-71000.,0.,0.,0.,0.,-355.,0.,0.,0.,0.,0.,0.},<<22>>,{0.,0.,0.,0.,0.,0.,-355.,0.,0.,<<6>>,0.,0.,-0.385038,355.,355.,0.,0.,0.,5.11837}} may contain significant numerical errors.

有的矩阵就是这样的，比较病态，不易数值计算