5 lines
189 B
TeX
5 lines
189 B
TeX
I_{ik}=\left[\begin{matrix}
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\sum m(y^2+z^2) & -\sum mxy & -\sum mxz\\
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-\sum mxy & \sum m(x^2+z^2) & -\sum myz\\
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-\sum mxz & -\sum myz & \sum m(x^2+y^2)\\
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\end{matrix}\right]
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