TriI1Basis.h

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// Intrepid2
basis[0 * 3 + 0] = 2.0 * (1.0 - ss);
basis[0 * 3 + 1] = 2.0 * rr;
basis[0 * 3 + 2] = 0.0;
 
basis[1 * 3 + 0] = -2.0 * ss;
basis[1 * 3 + 1] = 2.0 * rr;
basis[1 * 3 + 2] = 0.0;
 
basis[2 * 3 + 0] = -2.0 * ss;
basis[2 * 3 + 1] = 2.0 * (-1.0 + rr);
basis[2 * 3 + 2] = 0.0;