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/petsc/src/ts/tutorials/
H A Dex10.c459 RDNode ddiff[3]; in RDIJacobian_FD() local
460 /*diff = (1.-Theta)*RDDiffusion(rd,hx,x0,i,0) + Theta* */ RDDiffusion(rd, hx, x, i, ddiff); in RDIJacobian_FD()
461 K[0][0 * 2 + 0] = -hx * ddiff[0].E; in RDIJacobian_FD()
462 K[0][0 * 2 + 1] = -hx * ddiff[0].T; in RDIJacobian_FD()
463 K[0][1 * 2 + 0] = hx * (a - ddiff[1].E - drad.E); in RDIJacobian_FD()
464 K[0][1 * 2 + 1] = hx * (-ddiff[1].T - drad.T); in RDIJacobian_FD()
465 K[0][2 * 2 + 0] = -hx * ddiff[2].E; in RDIJacobian_FD()
466 K[0][2 * 2 + 1] = -hx * ddiff[2].T; in RDIJacobian_FD()