ple: Given the data shown, determine the best fit ( do and a) to use in f(x) = ao + a jx. Given data Substituting the numbers into Eqs. (a) and (b): i y i 4.9 X ¡Y i 1 1 4.9 2 11.2 33.6 na, +a, >x, = Ey, 54.8 3 4 13.7 16 4 6. 20.1 36 120.6 x =Ex,y, 49.9 Σ 14 62 213.9 x, +a, 4 a, +14a, = 49.9 14a, + 62a, = 213.9 %3D Solving for ao and a, : a, = 1.908 a, = 3.019 y = 1.908 +3.019 x Example 2: Let us go back to the example seen before, namely, Total 1 3 4 6. 7 8 9. 10 y 2.3 2.1 3.6 6.8 6.9 4.9 7.5 5.8 7.5 11.8 x, xy Fit the best line in the least square sense, and draw that line in the graph paper provided (nEx,y, -ExE».) a, = na, +a, a, 2x, +a, E X = a, = i=1 i=1
ple: Given the data shown, determine the best fit ( do and a) to use in f(x) = ao + a jx. Given data Substituting the numbers into Eqs. (a) and (b): i y i 4.9 X ¡Y i 1 1 4.9 2 11.2 33.6 na, +a, >x, = Ey, 54.8 3 4 13.7 16 4 6. 20.1 36 120.6 x =Ex,y, 49.9 Σ 14 62 213.9 x, +a, 4 a, +14a, = 49.9 14a, + 62a, = 213.9 %3D Solving for ao and a, : a, = 1.908 a, = 3.019 y = 1.908 +3.019 x Example 2: Let us go back to the example seen before, namely, Total 1 3 4 6. 7 8 9. 10 y 2.3 2.1 3.6 6.8 6.9 4.9 7.5 5.8 7.5 11.8 x, xy Fit the best line in the least square sense, and draw that line in the graph paper provided (nEx,y, -ExE».) a, = na, +a, a, 2x, +a, E X = a, = i=1 i=1
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
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please solve Example 2.
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