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Lines Matching defs:a21

553     double a11,a12,a21,a22;
558     a21 =  (xB-xA)*(xD-xC)+(yB-yA)*(yD-yC)+(zB-zA)*(zD-zC);
567     delta  = a11*a22-a12*a21;
575     deltaB = a11*b2-b1*a21;