Naloga 5

Podatki

In[64]:=

σij = {{5, 0, 0}, {0, -6, -12}, {0, -12, 1}} ; en = 1/3 {2, 1, 2} ;

Resitev

In[66]:=

σn = σij . en

Out[66]=

{10/3, -10, -10/3}

In[67]:=

Clear[σij, en, σn] ;

Created by Mathematica  (November 7, 2003)