, (x, y,... z), : = f(x, y,... z). D, D,... Dz d, d,... dz, :
D =
:
1. = x y z DB =
2. = xn × ym ×... × zl dB =
3. B = DB =
, . , . - , . , 25 (25,0 0,5) .
, (, D) 3 ( ) , , , ( ), .. , .
, .
: |
, (x, y,... z), : = f(x, y,... z). D, D,... Dz d, d,... dz, : D = : 1. = x y z DB = 2. = xn × ym ×... × zl dB = 3. B = DB = , . , . - , . , 25 (25,0 0,5) . , (, D) 3 ( ) , , , ( ), .. , . , .
: 2015-09-20; !; : 642 | : : - - , .
|