I am trying to find the expression of the weights and nodes for the Gauss-Lobatto quadratures with 4 nodes.
I am guessing this is a sum of weights? Does anyone here have experience working with this type of math?
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Hi Ian, welcome to Math StackExchange. While it's not unlikely that someone will come along who knows very precisely what you're asking about, you'll improve your chances of getting a good answer by editing your question to include more details about the material you're studying. – Kevin Carlson Oct 24 '12 at 15:04
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look for Lobatto here – Maesumi May 19 '13 at 19:46
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Straight from Wolfram Mathworld:
Nodes: $x_1 = -1, x_2 = - \frac{1}{\sqrt{5}}, x_3 = - x_2 = \frac{1}{\sqrt{5}}, x_4 = -x_1 = 1$
Weights: $ w_1 = \frac{5}{6} = w_4, w_2 = \frac{1}{6} = w_3$.
Dan Doe
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