Gradient, divergence, and curl are notable omissions from the Vector Calculus menu of Scientific Notebook, because they are implemented as ``∇'', `` ∇⋅'', and `` ∇×'' followed by Evaluate. For the symbol ∇, choose itbpF0.3009in0.3009in0.0701indel.wmf from the binary-operations symbol panel under itbpF0.3009in0.3009in0.0701inbinop.wmf, or choose it directly from Common Symbols toolbar.