square_minimal_rule_test, a C code which calls square_minimal_rule() to return "almost minimal" quadrature rules, with exactness up to total degree 55, over the interior of the symmetric unit square in 2D.
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square_minimal_rule, a C code which returns "almost minimal" quadrature rules, with exactness up to total degree 55, over the interior of the symmetric square in 2D, by Mattia Festa and Alvise Sommariva.