充..4
1. .....4
2. 酅.........8
3. -. ....10
4. .14
5. ......16
6. 19
7. ..22
8. 녅..23
25
..27
. , , , , , . . , , , . , , , , , , , , ..
, , , .. . , . , , . , .
. ( ) . , .
1.
, , . F(M), . , ; , .
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. , , ( ); .. ( ), ( ), ( ) .
F(M) = F(x,y,z) F(x,y,z) = , .. F() . . , .. , F() N, N . F() = const , , F(x,y,z) = , , .
u(M) = u(x,y,z)
. (1)
, (""): , , , . .
, , . P,Q,R,
.
, . :
.
ℓ, . ( , ) . :
.
. , , , , ; . F(x,y,z) = ; F(M) .
.