as.matrix               Convert a Ryacas Symbolic Matrix to a Character
                        Matrix
deltamethod             Compute the Variance-Covariance Matrix of
                        Functions using the first-order Delta Method
impliedS                Compute a Symbolic Model-Implied
                        Covariance/Correlation Matrix
sym                     Convert a Character Expression to Ryacas Symbol
                        or matrix
symSEM-package          Symbolic Computation for Structural Equation
                        ModelsSymbolic Computation for Structural
                        Equation Models
