1. f (x)
[-p,p]. f (x)
, (16)
(17)
f (x).
7. f (x) - [-p,p], .. f (x) f ¢(x) [-p,p] , f (x) [-p,p]. S (x), x Î[-p,p], (16)
.
S (x) (16) x Î(-¥,+¥) 2p .
1. f (x)= ex (-p,p). .
. (17), ,
:
ex [-p,p], 7 ex (-p,p):
x =p . . 1 ( ex [-p,p]).
f (x) [-p,p],
, (18)
: . f (x) [-p,p],
, (19)
: .
2. [-p,p]. .
. , (18), :
7, [-p,p] x 2: ( x =p , . . 1.2 ( - x 2 [-p,p].
3. f (x) [0,p] 7, , , , .
f (x) (0,p)
(-p,0) : f (x)= f (- x), x Î(-p,0) (. 1.3), (18);
f (x) (0,p) (-p,0) : f (x)=- f (x), x Î(-p,0) (. 1.4), (19).
3. (0,p) .
. x 2 (0,p) (-p,0) (19):
( x 2 , 2).
4. f (x) [ a, a +2p], :
1.8. , 2 l
f (x)
[- l,l ]. f (x)
,
f (x) - [- l,l ], [- l,l ]. S (x), x Î [- l, l ],
|
|
1.
. f (x) (-2,0) . ; l =2 :
, :
.
2.
2.1. .
f(x,y,z) W, Oxyz. n D Wi, D Ti, D i (xi, yi, zi). D Vi ( ), D Si ( ) D Li ( ) . , i - , . , , , .
:
;
;
.
l 0, , f(x,y,z) :
- ;
- I ;
- I .