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Avoid Vandermonde inversion in dmat construction #35

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pbrubeck
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@pbrubeck pbrubeck commented Feb 7, 2023

Construct dmats for ONPolynomialSet using projection and exploiting the orthogonality to invert the mass matrix, avoiding the inversion of a Vandermonde matrix on an equispaced lattice.

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please test Firedrake against this.

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rckirby commented Nov 9, 2023

This will not be needed once #47 lands.

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3 participants