EXAMPLE 4.4 Given the following data: 3 y-/(x) Approximate S(2 ) by using Newton's divided difference interpolation Ansi f Ca) = 3 EVAM DLE

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Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
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EXAMPLE 4.4
Given the following data:
-1
3.
y-/(x)
Approximate S(2 ) by using Newton's divided difference interpolation
Ansi f Ca) = 3
EXAMPLE 4.7
A census of the population of the United Kingdom is taken every 10 years The
foowing data list the population, in thousands on people, from 1930 to 1990
1930 – 123 203; 1940 - 131 669; 1950 - 150 697; 1960 - 179 323;
1970 - 203 212; 1980 - 226 505; 1990 - 249 633.
Find the population in 1965 from the polynomial that interpolates the data.
As:
f C965)= 191900.125,
Sue pplateon shald
be an nteger reamber, Rc 965) = 191900
%3D
EXAMPLE 4.8
Table 47
2.1
2.4
2.6
f(x)
0.521
0.510
0381
Based on the data above, find the Newton's interpolatory divided-
difference polynomial and approximate value for f(2.5).
(b)
(a)
Find f(2.5) if 1(20) = 0.510 is added in the data given in (a)
IS
Ao: a) f Caus )=0.458
b) f Cais)= O.463
Transcribed Image Text:EXAMPLE 4.4 Given the following data: -1 3. y-/(x) Approximate S(2 ) by using Newton's divided difference interpolation Ansi f Ca) = 3 EXAMPLE 4.7 A census of the population of the United Kingdom is taken every 10 years The foowing data list the population, in thousands on people, from 1930 to 1990 1930 – 123 203; 1940 - 131 669; 1950 - 150 697; 1960 - 179 323; 1970 - 203 212; 1980 - 226 505; 1990 - 249 633. Find the population in 1965 from the polynomial that interpolates the data. As: f C965)= 191900.125, Sue pplateon shald be an nteger reamber, Rc 965) = 191900 %3D EXAMPLE 4.8 Table 47 2.1 2.4 2.6 f(x) 0.521 0.510 0381 Based on the data above, find the Newton's interpolatory divided- difference polynomial and approximate value for f(2.5). (b) (a) Find f(2.5) if 1(20) = 0.510 is added in the data given in (a) IS Ao: a) f Caus )=0.458 b) f Cais)= O.463
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