Searched refs:gradleft (Results 1 – 1 of 1) sorted by relevance
67 PetscScalar gradup, graddown, gradleft, gradright, gradx, grady; in FormFunctionLocal() local83 gradleft = (t[j][i] - t[j][i - 1]) / hx; in FormFunctionLocal()91 coeffleft = 1.0 / PetscSqrtScalar(1.0 + gradleft * gradleft + grady * grady); in FormFunctionLocal()94 …effup * gradup - coeffdown * graddown) * hx + (coeffright * gradright - coeffleft * gradleft) * hy; in FormFunctionLocal()