2.
: .
:
1) ;
2) ;
3) ;
4) ;
5) ( );
6) .
2.1-2.10 2.A.
1.1. f(x)
f(x)=0 (1)
.
, , (1), - (1).
:
1 . .
2 . ε.
, [a,b], .
e.
.
( , ):
x = (a+b)/2, (a) ·(x)>0 => x*Î [x,b] => a=x, x*Î [a, x] => b=x
n, ε ( [a,b]):
: 0 :
b-a ≤ ε ∩ |(x)| ≤ ε.
( ).
xi=φ(xi-1), i=1,2, i −
:
: , n=0,1,
:
,
− .
:
: , n=0,1,;
c-
: , n=0,1,
: , n=0,1,
:
, n=0,1,, m=1,2,
2.1. f(x)=0 g(x)=0. , [ a, b ]. .
:
1. f(x)=0.
2. f(x)=0 .
3. f(x)=0 .
4. f(x)=0 .
5. . 1-4 g(x)=0. .
2.1.
|
|
=0, [a,b]=[0, ]
:
, =1.31811607652818, =1.738244406014586
: :
( MATHCAD)
bisec
MATHCAD
-
bisec, 0.001.
1.3181160717.
bisec
1.7382444060, 32.
-
.
.
2.2. f(x)=0 , .
) . [ a, b ].
b) . . ).
. a), b).
2.3. f(x)=0 , . x= j (x), , f(x)=0 .
a) x=x- a f(x), a=2/ (M+m), , x [ a, b ].
b) . .
, . a) q =(M-m)/(M+m), . b) .
q . a), b).
2.4. f(x)=0. , . ( ).
2.5. f(x)=0, [ a,b ], , m =1,2,3,4,5. .
2.6. ( )
f(x)=0. , , . ( ) .
2.7. f(x)=0. , , . ( ) .
2.8. ( )
( ) f(x)=0 , .
. .
2.9. ( )
a) f(x)=0. , . m =1,2,3. ?
b) f(x)+d=0, . 1, . * . ? , . ? .
|
|
2.10. ( )
y=f(x) F(x,y)=0. [1, 5] y=f(x) h =0.5, ( ). y=f(x) .
2.A.
2
2.1
N | f(x) | g(x) | [ a, b ] |
2.1.1 | |||
2.1.2 | |||
2.1.3 | |||
2.1.4 | |||
2.1.5 | |||
2.1.6 | |||
2.1.7. | [5,25] | ||
2.1.8 | [0.1,10] | ||
2.1.9 | [0.1,2] | ||
2.1.10 | |||
2.1.11 | |||
2.1.12 | |||
2.1.13 | [0,3] | ||
2.1.14 | [0,2] | ||
2.1.15 | [0,3] | ||
2.1.16 | |||
2.1.17 | |||
2.1.18 | |||
2.1.19 | |||
2.1.20 | |||
2.1.21 | |||
2.1.22 | [0.001,3] | ||
2.1.23 | [0.1,35] | ||
2.1.24 | [0.01,3] | ||
2.1.25 | |||
2.1.26 | [-0.5,1.5] | ||
2.1.27 | [-1.5,0] | ||
2.1.28 | [1,3] | ||
2.1.29 | [0,3] | ||
2.1.30 | [0,5] |
2.2 2.3
N | f(x) | N | f(x) | |
2.2.1 | 2.3.1 | |||
2.2.2 | 2.3.2 | |||
2.2.3 | 2.3.3 | |||
2.2.4 | 2.3.4 | |||
2.2.5 | 2.3.5 |
2.4
f(x) | |||||
N | |||||
2.4.1 | 4.545004 | -3.055105 | -18.06895 | 4.002429 | 4.722482 |
2.4.2 | -2.656764 | -3.406111 | 10.89372 | -1.752935 | -3.423612 |
2.4.3 | -4.556062 | 2.93309 | 9.274868 | -10.32081 | 0.422098 |
2.4.4 | 7.809249 | 16.28542 | -2.771356 | -27.95304 | -11.33921 |
2.4.5 | -13.0072 | 60.24546 | -122.0716 | 105.6798 | -30.19201 |
2.5
N | f(x) | [ a, b ] |
2.5.1 | [0.8,1.2] | |
2.5.2 | [0.3,0.7] | |
2.5.3 | [0.5,1] | |
2.5.4 | [0,1] | |
2.5.5 | [0,0.7] |
2.6 2.7
N | f(x) | * | N | f(x) |
2.6.1 | 2.7.1 | |||
2.6.2 | 2.7.2 | |||
2.6.3 | 2.7.3 | |||
2.6.4 | 2.7.4 | |||
2.6.5 | 2.7.5 |
2.8 2.9
N | f(x) | N | f(x) |
2.8.1 | 2.9.1 | ||
2.8.2 | 2.9.2 | ||
2.8.3 | 2.9.3 | ||
2.8.4 | 2.9.4 | ||
2.8.5 | 2.9.5 |
2.10
N | F(x,y) |
2.10.1 | , , |
2.10.2 | , , |
2.10.3 | , , |
2.10.4 | , , |
2.10.5 | , , |
1.
2.
3.
4.
5. ()
6. n, ε
7.
8.
9.
1. .., .., .. . .: , 1994.