Searched refs:graddown (Results 1 – 1 of 1) sorted by relevance
67 PetscScalar gradup, graddown, gradleft, gradright, gradx, grady; in FormFunctionLocal() local81 graddown = (t[j][i] - t[j - 1][i]) / hy; in FormFunctionLocal()89 coeffdown = 1.0 / PetscSqrtScalar(1.0 + graddown * graddown + gradx * gradx); in FormFunctionLocal()94 …f[j][i] = (coeffup * gradup - coeffdown * graddown) * hx + (coeffright * gradright - coeffleft * g… in FormFunctionLocal()