f
•
a=1
b=4
a/b
.25
0
f
f
x
x
x, y
y = x2 − 2x − 8
f
xn+1 = xn − f (xn )
x
4
x=0
x = −2
N
x0
xN +1
x1
x=4
f (x) = x2 − 2x − 8
f (x)
fp
xn+1
N = 10
x = −2, 0
x
N =3
N = 10
f
f (xn )
= xn − !
f (xn )
x = −3
x = 10
f (x(n))
N = 10
x
f
|f (xn ) ≤ 1e − 6|
f (x)
f (x)
3×3
A
B
C = AB
f p(x)
A∗B