triangle_symq_rule_test, an Octave code which calls triangle_symq_rule(), which returns symmetric quadrature rules, with exactness up to total degree 50, over the interior of an arbitrary triangle in 2D.
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triangle_symq_rule, an Octave code which returns efficient symmetric quadrature rules, with exactness up to total degree 50, over the interior of an arbitrary triangle in 2D, by Hong Xiao and Zydrunas Gimbutas.