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Quadratic least squares equation 
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#1
Dec411, 04:46 PM

P: 5

f(x) = –3√x, 1 ≤ x ≤ 4
(a) Find the quadratic least squares approximating function g for the function f. g(x)=? 


#2
Dec411, 06:36 PM

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The best fit function is clearly g(x)=3/sqrt(x). But I'm guessing you trying to fit a function that's doesn't have that form. What kind of function are you trying to fit and what's the definition of 'least squares fit'?



#3
Dec411, 06:47 PM

P: 5

Using g(x)= a0+a1x+a2x^2 when 1<x<4
using intergral(f(x)g(x)dx) 


#4
Dec411, 06:48 PM

P: 5

Quadratic least squares equation
If you could help that would be very much appreciated as I do not knw how to punch and chug that in an intergral.



#5
Dec411, 06:53 PM

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#6
Dec411, 06:55 PM

P: 5

How do I minimize the a0,a1 and a2 I do not get that part



#7
Dec411, 06:57 PM

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#8
Dec411, 06:59 PM

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Yes, but I missed the class. So could you tell me how to do that



#9
Dec411, 11:40 PM

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