1. , x, F(x), F(x)=0.
, , .
(. 1, . 4.), (2) [-1;1], +0,2 (. 4) (. 1).
, MS Excel c7, (3) , , , c7:c17.
=B7^3-0,01*B7^2-0,7044*B7+0,139104 (3)
1 (. 4) , [-1,-08], [0.2, 0.4] [0.6, 0.8]. , . , , x0=-0.9, x1=0.2 x3=0.7, .
, MS Excel .
(.4, . 2).
E9 1- -0,9. F9 = E9^3-0,01*E9^2-0,7044*E9+0,139104
:
, -, , : F9, : 0, : $E$9, Ok.
Ok.
, MS Excel E9.
. e10 e11 , , =0,3 =0,7
. 4. F(x)=0
3.3 (. 3).
.
1. f(x) x=[a,b] f(x) = 0, ( ) ;
2. , , f(x) |eps(f(x))|=0,0001. 3.3 3.xls
. ( , ) 1- , 4.
3 3.3
# | f(x) | f(x) | |
+1 | +16 | ||
+2 | |||
+3 | +18 | ||
+4 | +19 | ||
+20 | |||
+6 | +21 | ||
+8 | +23 | ||
+9 | +24 | ||
+10 | +25 | ||
+26 | |||
+12 | +27 | ||
+13 | +28 | ||
+14 | |||
+15 | |||
|
|
3.4.