Lines Matching refs:xx
415 double x=m_x[i], xx=x*x, xxx=xx*x;
416 fvec[i] = (b[0]+b[1]*x+b[2]*xx+b[3]*xxx) / (1.+b[4]*x+b[5]*xx+b[6]*xxx) - m_y[i];
427 double x=m_x[i], xx=x*x, xxx=xx*x;
428 double fact = 1./(1.+b[4]*x+b[5]*xx+b[6]*xxx);
431 fjac(i,2) = xx*fact;
433 fact = - (b[0]+b[1]*x+b[2]*xx+b[3]*xxx) * fact * fact;
435 fjac(i,5) = xx*fact;
996 double x = _x[i], xx=x*x;
997 fvec[i] = b[0]*(xx+x*b[1])/(xx+x*b[2]+b[3]) - y[i];
1007 double x = _x[i], xx=x*x;
1008 double factor = 1./(xx+x*b[2]+b[3]);
1009 fjac(i,0) = (xx+x*b[1]) * factor;
1011 fjac(i,2) = - b[0]*(xx+x*b[1]) * x * factor * factor;
1012 fjac(i,3) = - b[0]*(xx+x*b[1]) * factor * factor;
1165 double x=_x[i], xx=x*x, xxx=xx*x;
1166 fvec[i] = (b[0]+b[1]*x+b[2]*xx+b[3]*xxx) / (1.+b[4]*x+b[5]*xx+b[6]*xxx) - _y[i];
1176 double x=_x[i], xx=x*x, xxx=xx*x;
1177 double fact = 1./(1.+b[4]*x+b[5]*xx+b[6]*xxx);
1180 fjac(i,2) = xx*fact;
1182 fact = - (b[0]+b[1]*x+b[2]*xx+b[3]*xxx) * fact * fact;
1184 fjac(i,5) = xx*fact;
