You are given the quadrature formula - a 3 - a Q+(f, a, b) if. а + a+ -b 4 4 a) Determine to what degree m this formula integrates polynomials exactly. b) Compute the approximation of using Q, as given above (simplify your result, it may contain expressions like v2 and v3). c) How does the quadrature Q» compare to Newton-Cotes and Gauss rules? Which one of the three would you use in practice?

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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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You are given the quadrature formula
a
3.
a
3
Q.(f, a, b)
f
a + -b
2
4
2
4
a) Determine to what degree m this formula integrates polynomials exactly.
b) Compute the approximation of
•1
1
dx
using Q, as given above (simplify your result, it may contain expressions like /2 and V3).
c) How does the quadrature Q, compare to Newton-Cotes and Gauss rules? Which one of
the three would you use in practice?
Transcribed Image Text:You are given the quadrature formula a 3. a 3 Q.(f, a, b) f a + -b 2 4 2 4 a) Determine to what degree m this formula integrates polynomials exactly. b) Compute the approximation of •1 1 dx using Q, as given above (simplify your result, it may contain expressions like /2 and V3). c) How does the quadrature Q, compare to Newton-Cotes and Gauss rules? Which one of the three would you use in practice?
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