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3.1 | 1 | |
3.2 | 2 | |
3.3 | Excel | 4 |
3.4 | Mathcad | 9 |
3.5 | 10 | |
3.6 | 11 |
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, .
1. Excel F (x)=0 [ , ]. F (x) [ , ].
2. Excel 1 .
. -111 -121 , -112 -122 . .
3. Mathcad. F (x).
Excel- Mathcad- . :
1) F (x)=0 [ , ] ;
2) ;
3) =0.0001, Excel ;
4) , ;
5) =0.0001, Excel ;
6) 5 , Matcad;
7) .
, : " ", - " ".
[ , ], F (x)=0. :
1) [ , ] h,
2) F (x) ,
3) , F (x) .
: F (x)=0, (,) ε. , (,) .
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|
(, ), ..
.
(, ), F (x) . (, ) (, ) -:
F () F () , , .. (, ) , , B , (, ) .
| - | < ε.
, (, F (A))(B, F ()), ..
.
, (, ), (, ), F(x) . .
| Pk - Pk-1 | <ε,
Pk-1, Pk - .
F (x)=0 x = φ (). :
- x 0 (, );
- φ ( 0) x 1, .. x 1 = φ ( 0);
- φ ( 1) x 2, .. x 2 = φ ( 1);
, k - :
x k = φ (x k-1).
<1 0, x 1, x 2, x k, .
½ x k - x k-1½ < ε.
F (x)=0 x = φ (). :
F (x) = 0 | Þ | C . F (x) = 0 | Þ | C . F (x) + x = x | , |
.. φ () φ () = C . F (x) + x, .
. φ ()= C . F (x)+ x, : . , :
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