51   PetscReal hx, hy;     /* mesh spacing in x- and y-directions */  member
105   user.hy   = one / (my + 1);  in main()
205   PetscReal hx = user->hx, hy = user->hy, temp;  in FormInitialGuess()  local
212     temp = PetscMin(j + 1, ny - j) * hy;  in FormInitialGuess()
260   PetscReal          hx = user->hx, hy = user->hy, area, three = 3.0, p5 = 0.5;  in FormFunction()  local
281       dvdy = (vt - v) / hy;  in FormFunction()
298       dvdy  = (v - vb) / hy;  in FormFunction()
308   area = p5 * hx * hy;  in FormFunction()
332   PetscReal          hx = user->hx, hy = user->hy;  in FormGradient()  local
355       dvdy = (vt - v) / hy;  in FormGradient()
358         val = -dvdx / hx - dvdy / hy - cdiv3;  in FormGradient()
368         val = dvdy / hy - cdiv3;  in FormGradient()
385       dvdy = (v - vb) / hy;  in FormGradient()
388         val = -dvdy / hy - cdiv3;  in FormGradient()
398         val = dvdx / hx + dvdy / hy - cdiv3;  in FormGradient()
410   area = p5 * hx * hy;  in FormGradient()
535   PetscReal          p5 = 0.5, zero = 0.0, one = 1.0, hx, hy, val, area;  in HessianProduct()  local
544   hy   = user->hy;  in HessianProduct()
546   hyhy = one / (hy * hy);  in HessianProduct()
619   area = p5 * hx * hy;  in HessianProduct()